diff options
| -rw-r--r-- | sound/core/seq/seq_clientmgr.c | 606 |
1 files changed, 248 insertions, 358 deletions
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c index cf370031cfd5..e07a53910f3d 100644 --- a/sound/core/seq/seq_clientmgr.c +++ b/sound/core/seq/seq_clientmgr.c @@ -1128,59 +1128,69 @@ static unsigned int snd_seq_poll(struct file *file, poll_table * wait) /*-----------------------------------------------------*/ +static int snd_seq_ioctl_pversion(struct snd_seq_client *client, void *arg) +{ + int *pversion = arg; + + *pversion = SNDRV_SEQ_VERSION; + return 0; +} + +static int snd_seq_ioctl_client_id(struct snd_seq_client *client, void *arg) +{ + int *client_id = arg; + + *client_id = client->number; + return 0; +} /* SYSTEM_INFO ioctl() */ -static int snd_seq_ioctl_system_info(struct snd_seq_client *client, void __user *arg) +static int snd_seq_ioctl_system_info(struct snd_seq_client *client, void *arg) { - struct snd_seq_system_info info; + struct snd_seq_system_info *info = arg; - memset(&info, 0, sizeof(info)); + memset(info, 0, sizeof(*info)); /* fill the info fields */ - info.queues = SNDRV_SEQ_MAX_QUEUES; - info.clients = SNDRV_SEQ_MAX_CLIENTS; - info.ports = SNDRV_SEQ_MAX_PORTS; - info.channels = 256; /* fixed limit */ - info.cur_clients = client_usage.cur; - info.cur_queues = snd_seq_queue_get_cur_queues(); - - if (copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; + info->queues = SNDRV_SEQ_MAX_QUEUES; + info->clients = SNDRV_SEQ_MAX_CLIENTS; + info->ports = SNDRV_SEQ_MAX_PORTS; + info->channels = 256; /* fixed limit */ + info->cur_clients = client_usage.cur; + info->cur_queues = snd_seq_queue_get_cur_queues(); + return 0; } /* RUNNING_MODE ioctl() */ -static int snd_seq_ioctl_running_mode(struct snd_seq_client *client, void __user *arg) +static int snd_seq_ioctl_running_mode(struct snd_seq_client *client, void *arg) { - struct snd_seq_running_info info; + struct snd_seq_running_info *info = arg; struct snd_seq_client *cptr; int err = 0; - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - /* requested client number */ - cptr = snd_seq_client_use_ptr(info.client); + cptr = snd_seq_client_use_ptr(info->client); if (cptr == NULL) return -ENOENT; /* don't change !!! */ #ifdef SNDRV_BIG_ENDIAN - if (! info.big_endian) { + if (!info->big_endian) { err = -EINVAL; goto __err; } #else - if (info.big_endian) { + if (info->big_endian) { err = -EINVAL; goto __err; } #endif - if (info.cpu_mode > sizeof(long)) { + if (info->cpu_mode > sizeof(long)) { err = -EINVAL; goto __err; } - cptr->convert32 = (info.cpu_mode < sizeof(long)); + cptr->convert32 = (info->cpu_mode < sizeof(long)); __err: snd_seq_client_unlock(cptr); return err; @@ -1214,51 +1224,43 @@ static void get_client_info(struct snd_seq_client *cptr, } static int snd_seq_ioctl_get_client_info(struct snd_seq_client *client, - void __user *arg) + void *arg) { + struct snd_seq_client_info *client_info = arg; struct snd_seq_client *cptr; - struct snd_seq_client_info client_info; - - if (copy_from_user(&client_info, arg, sizeof(client_info))) - return -EFAULT; /* requested client number */ - cptr = snd_seq_client_use_ptr(client_info.client); + cptr = snd_seq_client_use_ptr(client_info->client); if (cptr == NULL) return -ENOENT; /* don't change !!! */ - get_client_info(cptr, &client_info); + get_client_info(cptr, client_info); snd_seq_client_unlock(cptr); - if (copy_to_user(arg, &client_info, sizeof(client_info))) - return -EFAULT; return 0; } /* CLIENT_INFO ioctl() */ static int snd_seq_ioctl_set_client_info(struct snd_seq_client *client, - void __user *arg) + void *arg) { - struct snd_seq_client_info client_info; - - if (copy_from_user(&client_info, arg, sizeof(client_info))) - return -EFAULT; + struct snd_seq_client_info *client_info = arg; /* it is not allowed to set the info fields for an another client */ - if (client->number != client_info.client) + if (client->number != client_info->client) return -EPERM; /* also client type must be set now */ - if (client->type != client_info.type) + if (client->type != client_info->type) return -EINVAL; /* fill the info fields */ - if (client_info.name[0]) - strlcpy(client->name, client_info.name, sizeof(client->name)); + if (client_info->name[0]) + strlcpy(client->name, client_info->name, sizeof(client->name)); - client->filter = client_info.filter; - client->event_lost = client_info.event_lost; - memcpy(client->event_filter, client_info.event_filter, 32); + client->filter = client_info->filter; + client->event_lost = client_info->event_lost; + memcpy(client->event_filter, client_info->event_filter, 32); return 0; } @@ -1267,30 +1269,26 @@ static int snd_seq_ioctl_set_client_info(struct snd_seq_client *client, /* * CREATE PORT ioctl() */ -static int snd_seq_ioctl_create_port(struct snd_seq_client *client, - void __user *arg) +static int snd_seq_ioctl_create_port(struct snd_seq_client *client, void *arg) { + struct snd_seq_port_info *info = arg; struct snd_seq_client_port *port; - struct snd_seq_port_info info; struct snd_seq_port_callback *callback; - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - /* it is not allowed to create the port for an another client */ - if (info.addr.client != client->number) + if (info->addr.client != client->number) return -EPERM; - port = snd_seq_create_port(client, (info.flags & SNDRV_SEQ_PORT_FLG_GIVEN_PORT) ? info.addr.port : -1); + port = snd_seq_create_port(client, (info->flags & SNDRV_SEQ_PORT_FLG_GIVEN_PORT) ? info->addr.port : -1); if (port == NULL) return -ENOMEM; - if (client->type == USER_CLIENT && info.kernel) { + if (client->type == USER_CLIENT && info->kernel) { snd_seq_delete_port(client, port->addr.port); return -EINVAL; } if (client->type == KERNEL_CLIENT) { - if ((callback = info.kernel) != NULL) { + if ((callback = info->kernel) != NULL) { if (callback->owner) port->owner = callback->owner; port->private_data = callback->private_data; @@ -1303,37 +1301,29 @@ static int snd_seq_ioctl_create_port(struct snd_seq_client *client, } } - info.addr = port->addr; + info->addr = port->addr; - snd_seq_set_port_info(port, &info); + snd_seq_set_port_info(port, info); snd_seq_system_client_ev_port_start(port->addr.client, port->addr.port); - if (copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; - return 0; } /* * DELETE PORT ioctl() */ -static int snd_seq_ioctl_delete_port(struct snd_seq_client *client, - void __user *arg) +static int snd_seq_ioctl_delete_port(struct snd_seq_client *client, void *arg) { - struct snd_seq_port_info info; + struct snd_seq_port_info *info = arg; int err; - /* set passed parameters */ - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - /* it is not allowed to remove the port for an another client */ - if (info.addr.client != client->number) + if (info->addr.client != client->number) return -EPERM; - err = snd_seq_delete_port(client, info.addr.port); + err = snd_seq_delete_port(client, info->addr.port); if (err >= 0) - snd_seq_system_client_ev_port_exit(client->number, info.addr.port); + snd_seq_system_client_ev_port_exit(client->number, info->addr.port); return err; } @@ -1341,32 +1331,27 @@ static int snd_seq_ioctl_delete_port(struct snd_seq_client *client, /* * GET_PORT_INFO ioctl() (on any client) */ -static int snd_seq_ioctl_get_port_info(struct snd_seq_client *client, - void __user *arg) +static int snd_seq_ioctl_get_port_info(struct snd_seq_client *client, void *arg) { + struct snd_seq_port_info *info = arg; struct snd_seq_client *cptr; struct snd_seq_client_port *port; - struct snd_seq_port_info info; - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - cptr = snd_seq_client_use_ptr(info.addr.client); + cptr = snd_seq_client_use_ptr(info->addr.client); if (cptr == NULL) return -ENXIO; - port = snd_seq_port_use_ptr(cptr, info.addr.port); + port = snd_seq_port_use_ptr(cptr, info->addr.port); if (port == NULL) { snd_seq_client_unlock(cptr); return -ENOENT; /* don't change */ } /* get port info */ - snd_seq_get_port_info(port, &info); + snd_seq_get_port_info(port, info); snd_seq_port_unlock(port); snd_seq_client_unlock(cptr); - if (copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; return 0; } @@ -1374,20 +1359,16 @@ static int snd_seq_ioctl_get_port_info(struct snd_seq_client *client, /* * SET_PORT_INFO ioctl() (only ports on this/own client) */ -static int snd_seq_ioctl_set_port_info(struct snd_seq_client *client, - void __user *arg) +static int snd_seq_ioctl_set_port_info(struct snd_seq_client *client, void *arg) { + struct snd_seq_port_info *info = arg; struct snd_seq_client_port *port; - struct snd_seq_port_info info; - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - - if (info.addr.client != client->number) /* only set our own ports ! */ + if (info->addr.client != client->number) /* only set our own ports ! */ return -EPERM; - port = snd_seq_port_use_ptr(client, info.addr.port); + port = snd_seq_port_use_ptr(client, info->addr.port); if (port) { - snd_seq_set_port_info(port, &info); + snd_seq_set_port_info(port, info); snd_seq_port_unlock(port); } return 0; @@ -1453,34 +1434,31 @@ int snd_seq_client_notify_subscription(int client, int port, * add to port's subscription list IOCTL interface */ static int snd_seq_ioctl_subscribe_port(struct snd_seq_client *client, - void __user *arg) + void *arg) { + struct snd_seq_port_subscribe *subs = arg; int result = -EINVAL; struct snd_seq_client *receiver = NULL, *sender = NULL; struct snd_seq_client_port *sport = NULL, *dport = NULL; - struct snd_seq_port_subscribe subs; - - if (copy_from_user(&subs, arg, sizeof(subs))) - return -EFAULT; - if ((receiver = snd_seq_client_use_ptr(subs.dest.client)) == NULL) + if ((receiver = snd_seq_client_use_ptr(subs->dest.client)) == NULL) goto __end; - if ((sender = snd_seq_client_use_ptr(subs.sender.client)) == NULL) + if ((sender = snd_seq_client_use_ptr(subs->sender.client)) == NULL) goto __end; - if ((sport = snd_seq_port_use_ptr(sender, subs.sender.port)) == NULL) + if ((sport = snd_seq_port_use_ptr(sender, subs->sender.port)) == NULL) goto __end; - if ((dport = snd_seq_port_use_ptr(receiver, subs.dest.port)) == NULL) + if ((dport = snd_seq_port_use_ptr(receiver, subs->dest.port)) == NULL) goto __end; - result = check_subscription_permission(client, sport, dport, &subs); + result = check_subscription_permission(client, sport, dport, subs); if (result < 0) goto __end; /* connect them */ - result = snd_seq_port_connect(client, sender, sport, receiver, dport, &subs); + result = snd_seq_port_connect(client, sender, sport, receiver, dport, subs); if (! result) /* broadcast announce */ snd_seq_client_notify_subscription(SNDRV_SEQ_ADDRESS_SUBSCRIBERS, 0, - &subs, SNDRV_SEQ_EVENT_PORT_SUBSCRIBED); + subs, SNDRV_SEQ_EVENT_PORT_SUBSCRIBED); __end: if (sport) snd_seq_port_unlock(sport); @@ -1498,33 +1476,30 @@ static int snd_seq_ioctl_subscribe_port(struct snd_seq_client *client, * remove from port's subscription list */ static int snd_seq_ioctl_unsubscribe_port(struct snd_seq_client *client, - void __user *arg) + void *arg) { + struct snd_seq_port_subscribe *subs = arg; int result = -ENXIO; struct snd_seq_client *receiver = NULL, *sender = NULL; struct snd_seq_client_port *sport = NULL, *dport = NULL; - struct snd_seq_port_subscribe subs; - if (copy_from_user(&subs, arg, sizeof(subs))) - return -EFAULT; - - if ((receiver = snd_seq_client_use_ptr(subs.dest.client)) == NULL) + if ((receiver = snd_seq_client_use_ptr(subs->dest.client)) == NULL) goto __end; - if ((sender = snd_seq_client_use_ptr(subs.sender.client)) == NULL) + if ((sender = snd_seq_client_use_ptr(subs->sender.client)) == NULL) goto __end; - if ((sport = snd_seq_port_use_ptr(sender, subs.sender.port)) == NULL) + if ((sport = snd_seq_port_use_ptr(sender, subs->sender.port)) == NULL) goto __end; - if ((dport = snd_seq_port_use_ptr(receiver, subs.dest.port)) == NULL) + if ((dport = snd_seq_port_use_ptr(receiver, subs->dest.port)) == NULL) goto __end; - result = check_subscription_permission(client, sport, dport, &subs); + result = check_subscription_permission(client, sport, dport, subs); if (result < 0) goto __end; - result = snd_seq_port_disconnect(client, sender, sport, receiver, dport, &subs); + result = snd_seq_port_disconnect(client, sender, sport, receiver, dport, subs); if (! result) /* broadcast announce */ snd_seq_client_notify_subscription(SNDRV_SEQ_ADDRESS_SUBSCRIBERS, 0, - &subs, SNDRV_SEQ_EVENT_PORT_UNSUBSCRIBED); + subs, SNDRV_SEQ_EVENT_PORT_UNSUBSCRIBED); __end: if (sport) snd_seq_port_unlock(sport); @@ -1539,17 +1514,13 @@ static int snd_seq_ioctl_unsubscribe_port(struct snd_seq_client *client, /* CREATE_QUEUE ioctl() */ -static int snd_seq_ioctl_create_queue(struct snd_seq_client *client, - void __user *arg) +static int snd_seq_ioctl_create_queue(struct snd_seq_client *client, void *arg) { - struct snd_seq_queue_info info; + struct snd_seq_queue_info *info = arg; int result; struct snd_seq_queue *q; - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - - result = snd_seq_queue_alloc(client->number, info.locked, info.flags); + result = snd_seq_queue_alloc(client->number, info->locked, info->flags); if (result < 0) return result; @@ -1557,181 +1528,150 @@ static int snd_seq_ioctl_create_queue(struct snd_seq_client *client, if (q == NULL) return -EINVAL; - info.queue = q->queue; - info.locked = q->locked; - info.owner = q->owner; + info->queue = q->queue; + info->locked = q->locked; + info->owner = q->owner; /* set queue name */ - if (! info.name[0]) - snprintf(info.name, sizeof(info.name), "Queue-%d", q->queue); - strlcpy(q->name, info.name, sizeof(q->name)); + if (!info->name[0]) + snprintf(info->name, sizeof(info->name), "Queue-%d", q->queue); + strlcpy(q->name, info->name, sizeof(q->name)); queuefree(q); - if (copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; - return 0; } /* DELETE_QUEUE ioctl() */ -static int snd_seq_ioctl_delete_queue(struct snd_seq_client *client, - void __user *arg) +static int snd_seq_ioctl_delete_queue(struct snd_seq_client *client, void *arg) { - struct snd_seq_queue_info info; + struct snd_seq_queue_info *info = arg; - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - - return snd_seq_queue_delete(client->number, info.queue); + return snd_seq_queue_delete(client->number, info->queue); } /* GET_QUEUE_INFO ioctl() */ static int snd_seq_ioctl_get_queue_info(struct snd_seq_client *client, - void __user *arg) + void *arg) { - struct snd_seq_queue_info info; + struct snd_seq_queue_info *info = arg; struct snd_seq_queue *q; - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - - q = queueptr(info.queue); + q = queueptr(info->queue); if (q == NULL) return -EINVAL; - memset(&info, 0, sizeof(info)); - info.queue = q->queue; - info.owner = q->owner; - info.locked = q->locked; - strlcpy(info.name, q->name, sizeof(info.name)); + memset(info, 0, sizeof(*info)); + info->queue = q->queue; + info->owner = q->owner; + info->locked = q->locked; + strlcpy(info->name, q->name, sizeof(info->name)); queuefree(q); - if (copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; - return 0; } /* SET_QUEUE_INFO ioctl() */ static int snd_seq_ioctl_set_queue_info(struct snd_seq_client *client, - void __user *arg) + void *arg) { - struct snd_seq_queue_info info; + struct snd_seq_queue_info *info = arg; struct snd_seq_queue *q; - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - - if (info.owner != client->number) + if (info->owner != client->number) return -EINVAL; /* change owner/locked permission */ - if (snd_seq_queue_check_access(info.queue, client->number)) { - if (snd_seq_queue_set_owner(info.queue, client->number, info.locked) < 0) + if (snd_seq_queue_check_access(info->queue, client->number)) { + if (snd_seq_queue_set_owner(info->queue, client->number, info->locked) < 0) return -EPERM; - if (info.locked) - snd_seq_queue_use(info.queue, client->number, 1); + if (info->locked) + snd_seq_queue_use(info->queue, client->number, 1); } else { return -EPERM; } - q = queueptr(info.queue); + q = queueptr(info->queue); if (! q) return -EINVAL; if (q->owner != client->number) { queuefree(q); return -EPERM; } - strlcpy(q->name, info.name, sizeof(q->name)); + strlcpy(q->name, info->name, sizeof(q->name)); queuefree(q); return 0; } /* GET_NAMED_QUEUE ioctl() */ -static int snd_seq_ioctl_get_named_queue(struct snd_seq_client *client, void __user *arg) +static int snd_seq_ioctl_get_named_queue(struct snd_seq_client *client, + void *arg) { - struct snd_seq_queue_info info; + struct snd_seq_queue_info *info = arg; struct snd_seq_queue *q; - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - - q = snd_seq_queue_find_name(info.name); + q = snd_seq_queue_find_name(info->name); if (q == NULL) return -EINVAL; - info.queue = q->queue; - info.owner = q->owner; - info.locked = q->locked; + info->queue = q->queue; + info->owner = q->owner; + info->locked = q->locked; queuefree(q); - if (copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; - return 0; } /* GET_QUEUE_STATUS ioctl() */ static int snd_seq_ioctl_get_queue_status(struct snd_seq_client *client, - void __user *arg) + void *arg) { - struct snd_seq_queue_status status; + struct snd_seq_queue_status *status = arg; struct snd_seq_queue *queue; struct snd_seq_timer *tmr; - if (copy_from_user(&status, arg, sizeof(status))) - return -EFAULT; - - queue = queueptr(status.queue); + queue = queueptr(status->queue); if (queue == NULL) return -EINVAL; - memset(&status, 0, sizeof(status)); - status.queue = queue->queue; + memset(status, 0, sizeof(*status)); + status->queue = queue->queue; tmr = queue->timer; - status.events = queue->tickq->cells + queue->timeq->cells; + status->events = queue->tickq->cells + queue->timeq->cells; - status.time = snd_seq_timer_get_cur_time(tmr); - status.tick = snd_seq_timer_get_cur_tick(tmr); + status->time = snd_seq_timer_get_cur_time(tmr); + status->tick = snd_seq_timer_get_cur_tick(tmr); - status.running = tmr->running; + status->running = tmr->running; - status.flags = queue->flags; + status->flags = queue->flags; queuefree(queue); - if (copy_to_user(arg, &status, sizeof(status))) - return -EFAULT; return 0; } /* GET_QUEUE_TEMPO ioctl() */ static int snd_seq_ioctl_get_queue_tempo(struct snd_seq_client *client, - void __user *arg) + void *arg) { - struct snd_seq_queue_tempo tempo; + struct snd_seq_queue_tempo *tempo = arg; struct snd_seq_queue *queue; struct snd_seq_timer *tmr; - if (copy_from_user(&tempo, arg, sizeof(tempo))) - return -EFAULT; - - queue = queueptr(tempo.queue); + queue = queueptr(tempo->queue); if (queue == NULL) return -EINVAL; - memset(&tempo, 0, sizeof(tempo)); - tempo.queue = queue->queue; + memset(tempo, 0, sizeof(*tempo)); + tempo->queue = queue->queue; tmr = queue->timer; - tempo.tempo = tmr->tempo; - tempo.ppq = tmr->ppq; - tempo.skew_value = tmr->skew; - tempo.skew_base = tmr->skew_base; + tempo->tempo = tmr->tempo; + tempo->ppq = tmr->ppq; + tempo->skew_value = tmr->skew; + tempo->skew_base = tmr->skew_base; queuefree(queue); - if (copy_to_user(arg, &tempo, sizeof(tempo))) - return -EFAULT; return 0; } @@ -1747,31 +1687,25 @@ int snd_seq_set_queue_tempo(int client, struct snd_seq_queue_tempo *tempo) EXPORT_SYMBOL(snd_seq_set_queue_tempo); static int snd_seq_ioctl_set_queue_tempo(struct snd_seq_client *client, - void __user *arg) + void *arg) { + struct snd_seq_queue_tempo *tempo = arg; int result; - struct snd_seq_queue_tempo tempo; - - if (copy_from_user(&tempo, arg, sizeof(tempo))) - return -EFAULT; - result = snd_seq_set_queue_tempo(client->number, &tempo); + result = snd_seq_set_queue_tempo(client->number, tempo); return result < 0 ? result : 0; } /* GET_QUEUE_TIMER ioctl() */ static int snd_seq_ioctl_get_queue_timer(struct snd_seq_client *client, - void __user *arg) + void *arg) { - struct snd_seq_queue_timer timer; + struct snd_seq_queue_timer *timer = arg; struct snd_seq_queue *queue; struct snd_seq_timer *tmr; - if (copy_from_user(&timer, arg, sizeof(timer))) - return -EFAULT; - - queue = queueptr(timer.queue); + queue = queueptr(timer->queue); if (queue == NULL) return -EINVAL; @@ -1780,41 +1714,36 @@ static int snd_seq_ioctl_get_queue_timer(struct snd_seq_client *client, return -ERESTARTSYS; } tmr = queue->timer; - memset(&timer, 0, sizeof(timer)); - timer.queue = queue->queue; + memset(timer, 0, sizeof(*timer)); + timer->queue = queue->queue; - timer.type = tmr->type; + timer->type = tmr->type; if (tmr->type == SNDRV_SEQ_TIMER_ALSA) { - timer.u.alsa.id = tmr->alsa_id; - timer.u.alsa.resolution = tmr->preferred_resolution; + timer->u.alsa.id = tmr->alsa_id; + timer->u.alsa.resolution = tmr->preferred_resolution; } mutex_unlock(&queue->timer_mutex); queuefree(queue); - if (copy_to_user(arg, &timer, sizeof(timer))) - return -EFAULT; return 0; } /* SET_QUEUE_TIMER ioctl() */ static int snd_seq_ioctl_set_queue_timer(struct snd_seq_client *client, - void __user *arg) + void *arg) { + struct snd_seq_queue_timer *timer = arg; int result = 0; - struct snd_seq_queue_timer timer; - if (copy_from_user(&timer, arg, sizeof(timer))) - return -EFAULT; - - if (timer.type != SNDRV_SEQ_TIMER_ALSA) + if (timer->type != SNDRV_SEQ_TIMER_ALSA) return -EINVAL; - if (snd_seq_queue_check_access(timer.queue, client->number)) { + if (snd_seq_queue_check_access(timer->queue, client->number)) { struct snd_seq_queue *q; struct snd_seq_timer *tmr; - q = queueptr(timer.queue); + q = queueptr(timer->queue); if (q == NULL) return -ENXIO; if (mutex_lock_interruptible(&q->timer_mutex)) { @@ -1822,13 +1751,13 @@ static int snd_seq_ioctl_set_queue_timer(struct snd_seq_client *client, return -ERESTARTSYS; } tmr = q->timer; - snd_seq_queue_timer_close(timer.queue); - tmr->type = timer.type; + snd_seq_queue_timer_close(timer->queue); + tmr->type = timer->type; if (tmr->type == SNDRV_SEQ_TIMER_ALSA) { - tmr->alsa_id = timer.u.alsa.id; - tmr->preferred_resolution = timer.u.alsa.resolution; + tmr->alsa_id = timer->u.alsa.id; + tmr->preferred_resolution = timer->u.alsa.resolution; } - result = snd_seq_queue_timer_open(timer.queue); + result = snd_seq_queue_timer_open(timer->queue); mutex_unlock(&q->timer_mutex); queuefree(q); } else { @@ -1841,38 +1770,30 @@ static int snd_seq_ioctl_set_queue_timer(struct snd_seq_client *client, /* GET_QUEUE_CLIENT ioctl() */ static int snd_seq_ioctl_get_queue_client(struct snd_seq_client *client, - void __user *arg) + void *arg) { - struct snd_seq_queue_client info; + struct snd_seq_queue_client *info = arg; int used; - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - - used = snd_seq_queue_is_used(info.queue, client->number); + used = snd_seq_queue_is_used(info->queue, client->number); if (used < 0) return -EINVAL; - info.used = used; - info.client = client->number; + info->used = used; + info->client = client->number; - if (copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; return 0; } /* SET_QUEUE_CLIENT ioctl() */ static int snd_seq_ioctl_set_queue_client(struct snd_seq_client *client, - void __user *arg) + void *arg) { + struct snd_seq_queue_client *info = arg; int err; - struct snd_seq_queue_client info; - - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - if (info.used >= 0) { - err = snd_seq_queue_use(info.queue, client->number, info.used); + if (info->used >= 0) { + err = snd_seq_queue_use(info->queue, client->number, info->used); if (err < 0) return err; } @@ -1883,78 +1804,70 @@ static int snd_seq_ioctl_set_queue_client(struct snd_seq_client *client, /* GET_CLIENT_POOL ioctl() */ static int snd_seq_ioctl_get_client_pool(struct snd_seq_client *client, - void __user *arg) + void *arg) { - struct snd_seq_client_pool info; + struct snd_seq_client_pool *info = arg; struct snd_seq_client *cptr; - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - - cptr = snd_seq_client_use_ptr(info.client); + cptr = snd_seq_client_use_ptr(info->client); if (cptr == NULL) return -ENOENT; - memset(&info, 0, sizeof(info)); - info.client = cptr->number; - info.output_pool = cptr->pool->size; - info.output_room = cptr->pool->room; - info.output_free = info.output_pool; - info.output_free = snd_seq_unused_cells(cptr->pool); + memset(info, 0, sizeof(*info)); + info->client = cptr->number; + info->output_pool = cptr->pool->size; + info->output_room = cptr->pool->room; + info->output_free = info->output_pool; + info->output_free = snd_seq_unused_cells(cptr->pool); if (cptr->type == USER_CLIENT) { - info.input_pool = cptr->data.user.fifo_pool_size; - info.input_free = info.input_pool; + info->input_pool = cptr->data.user.fifo_pool_size; + info->input_free = info->input_pool; if (cptr->data.user.fifo) - info.input_free = snd_seq_unused_cells(cptr->data.user.fifo->pool); + info->input_free = snd_seq_unused_cells(cptr->data.user.fifo->pool); } else { - info.input_pool = 0; - info.input_free = 0; + info->input_pool = 0; + info->input_free = 0; } snd_seq_client_unlock(cptr); - if (copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; return 0; } /* SET_CLIENT_POOL ioctl() */ static int snd_seq_ioctl_set_client_pool(struct snd_seq_client *client, - void __user *arg) + void *arg) { - struct snd_seq_client_pool info; + struct snd_seq_client_pool *info = arg; int rc; - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - - if (client->number != info.client) + if (client->number != info->client) return -EINVAL; /* can't change other clients */ - if (info.output_pool >= 1 && info.output_pool <= SNDRV_SEQ_MAX_EVENTS && + if (info->output_pool >= 1 && info->output_pool <= SNDRV_SEQ_MAX_EVENTS && (! snd_seq_write_pool_allocated(client) || - info.output_pool != client->pool->size)) { + info->output_pool != client->pool->size)) { if (snd_seq_write_pool_allocated(client)) { /* remove all existing cells */ snd_seq_queue_client_leave_cells(client->number); snd_seq_pool_done(client->pool); } - client->pool->size = info.output_pool; + client->pool->size = info->output_pool; rc = snd_seq_pool_init(client->pool); if (rc < 0) return rc; } if (client->type == USER_CLIENT && client->data.user.fifo != NULL && - info.input_pool >= 1 && - info.input_pool <= SNDRV_SEQ_MAX_CLIENT_EVENTS && - info.input_pool != client->data.user.fifo_pool_size) { + info->input_pool >= 1 && + info->input_pool <= SNDRV_SEQ_MAX_CLIENT_EVENTS && + info->input_pool != client->data.user.fifo_pool_size) { /* change pool size */ - rc = snd_seq_fifo_resize(client->data.user.fifo, info.input_pool); + rc = snd_seq_fifo_resize(client->data.user.fifo, info->input_pool); if (rc < 0) return rc; - client->data.user.fifo_pool_size = info.input_pool; + client->data.user.fifo_pool_size = info->input_pool; } - if (info.output_room >= 1 && - info.output_room <= client->pool->size) { - client->pool->room = info.output_room; + if (info->output_room >= 1 && + info->output_room <= client->pool->size) { + client->pool->room = info->output_room; } return snd_seq_ioctl_get_client_pool(client, arg); @@ -1963,17 +1876,14 @@ static int snd_seq_ioctl_set_client_pool(struct snd_seq_client *client, /* REMOVE_EVENTS ioctl() */ static int snd_seq_ioctl_remove_events(struct snd_seq_client *client, - void __user *arg) + void *arg) { - struct snd_seq_remove_events info; - - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; + struct snd_seq_remove_events *info = arg; /* * Input mostly not implemented XXX. */ - if (info.remove_mode & SNDRV_SEQ_REMOVE_INPUT) { + if (info->remove_mode & SNDRV_SEQ_REMOVE_INPUT) { /* * No restrictions so for a user client we can clear * the whole fifo @@ -1982,8 +1892,8 @@ static int snd_seq_ioctl_remove_events(struct snd_seq_client *client, snd_seq_fifo_clear(client->data.user.fifo); } - if (info.remove_mode & SNDRV_SEQ_REMOVE_OUTPUT) - snd_seq_queue_remove_cells(client->number, &info); + if (info->remove_mode & SNDRV_SEQ_REMOVE_OUTPUT) + snd_seq_queue_remove_cells(client->number, info); return 0; } @@ -1993,26 +1903,23 @@ static int snd_seq_ioctl_remove_events(struct snd_seq_client *client, * get subscription info */ static int snd_seq_ioctl_get_subscription(struct snd_seq_client *client, - void __user *arg) + void *arg) { + struct snd_seq_port_subscribe *subs = arg; int result; struct snd_seq_client *sender = NULL; struct snd_seq_client_port *sport = NULL; - struct snd_seq_port_subscribe subs; struct snd_seq_subscribers *p; - if (copy_from_user(&subs, arg, sizeof(subs))) - return -EFAULT; - result = -EINVAL; - if ((sender = snd_seq_client_use_ptr(subs.sender.client)) == NULL) + if ((sender = snd_seq_client_use_ptr(subs->sender.client)) == NULL) goto __end; - if ((sport = snd_seq_port_use_ptr(sender, subs.sender.port)) == NULL) + if ((sport = snd_seq_port_use_ptr(sender, subs->sender.port)) == NULL) goto __end; - p = snd_seq_port_get_subscription(&sport->c_src, &subs.dest); + p = snd_seq_port_get_subscription(&sport->c_src, &subs->dest); if (p) { result = 0; - subs = p->info; + *subs = p->info; } else result = -ENOENT; @@ -2021,10 +1928,7 @@ static int snd_seq_ioctl_get_subscription(struct snd_seq_client *client, snd_seq_port_unlock(sport); if (sender) snd_seq_client_unlock(sender); - if (result >= 0) { - if (copy_to_user(arg, &subs, sizeof(subs))) - return -EFAULT; - } + return result; } @@ -2032,26 +1936,22 @@ static int snd_seq_ioctl_get_subscription(struct snd_seq_client *client, /* * get subscription info - check only its presence */ -static int snd_seq_ioctl_query_subs(struct snd_seq_client *client, - void __user *arg) +static int snd_seq_ioctl_query_subs(struct snd_seq_client *client, void *arg) { + struct snd_seq_query_subs *subs = arg; int result = -ENXIO; struct snd_seq_client *cptr = NULL; struct snd_seq_client_port *port = NULL; - struct snd_seq_query_subs subs; struct snd_seq_port_subs_info *group; struct list_head *p; int i; - if (copy_from_user(&subs, arg, sizeof(subs))) - return -EFAULT; - - if ((cptr = snd_seq_client_use_ptr(subs.root.client)) == NULL) + if ((cptr = snd_seq_client_use_ptr(subs->root.client)) == NULL) goto __end; - if ((port = snd_seq_port_use_ptr(cptr, subs.root.port)) == NULL) + if ((port = snd_seq_port_use_ptr(cptr, subs->root.port)) == NULL) goto __end; - switch (subs.type) { + switch (subs->type) { case SNDRV_SEQ_QUERY_SUBS_READ: group = &port->c_src; break; @@ -2064,22 +1964,22 @@ static int snd_seq_ioctl_query_subs(struct snd_seq_client *client, down_read(&group->list_mutex); /* search for the subscriber */ - subs.num_subs = group->count; + subs->num_subs = group->count; i = 0; result = -ENOENT; list_for_each(p, &group->list_head) { - if (i++ == subs.index) { + if (i++ == subs->index) { /* found! */ struct snd_seq_subscribers *s; - if (subs.type == SNDRV_SEQ_QUERY_SUBS_READ) { + if (subs->type == SNDRV_SEQ_QUERY_SUBS_READ) { s = list_entry(p, struct snd_seq_subscribers, src_list); - subs.addr = s->info.dest; + subs->addr = s->info.dest; } else { s = list_entry(p, struct snd_seq_subscribers, dest_list); - subs.addr = s->info.sender; + subs->addr = s->info.sender; } - subs.flags = s->info.flags; - subs.queue = s->info.queue; + subs->flags = s->info.flags; + subs->queue = s->info.queue; result = 0; break; } @@ -2091,10 +1991,7 @@ static int snd_seq_ioctl_query_subs(struct snd_seq_client *client, snd_seq_port_unlock(port); if (cptr) snd_seq_client_unlock(cptr); - if (result >= 0) { - if (copy_to_user(arg, &subs, sizeof(subs))) - return -EFAULT; - } + return result; } @@ -2103,31 +2000,26 @@ static int snd_seq_ioctl_query_subs(struct snd_seq_client *client, * query next client */ static int snd_seq_ioctl_query_next_client(struct snd_seq_client *client, - void __user *arg) + void *arg) { + struct snd_seq_client_info *info = arg; struct snd_seq_client *cptr = NULL; - struct snd_seq_client_info info; - - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; /* search for next client */ - info.client++; - if (info.client < 0) - info.client = 0; - for (; info.client < SNDRV_SEQ_MAX_CLIENTS; info.client++) { - cptr = snd_seq_client_use_ptr(info.client); + info->client++; + if (info->client < 0) + info->client = 0; + for (; info->client < SNDRV_SEQ_MAX_CLIENTS; info->client++) { + cptr = snd_seq_client_use_ptr(info->client); if (cptr) break; /* found */ } if (cptr == NULL) return -ENOENT; - get_client_info(cptr, &info); + get_client_info(cptr, info); snd_seq_client_unlock(cptr); - if (copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; return 0; } @@ -2135,34 +2027,30 @@ static int snd_seq_ioctl_query_next_client(struct snd_seq_client *client, * query next port */ static int snd_seq_ioctl_query_next_port(struct snd_seq_client *client, - void __user *arg) + void *arg) { + struct snd_seq_port_info *info = arg; struct snd_seq_client *cptr; struct snd_seq_client_port *port = NULL; - struct snd_seq_port_info info; - if (copy_from_user(&info, arg, sizeof(info))) - return -EFAULT; - cptr = snd_seq_client_use_ptr(info.addr.client); + cptr = snd_seq_client_use_ptr(info->addr.client); if (cptr == NULL) return -ENXIO; /* search for next port */ - info.addr.port++; - port = snd_seq_port_query_nearest(cptr, &info); + info->addr.port++; + port = snd_seq_port_query_nearest(cptr, info); if (port == NULL) { snd_seq_client_unlock(cptr); return -ENOENT; } /* get port info */ - info.addr = port->addr; - snd_seq_get_port_info(port, &info); + info->addr = port->addr; + snd_seq_get_port_info(port, info); snd_seq_port_unlock(port); snd_seq_client_unlock(cptr); - if (copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; return 0; } @@ -2172,13 +2060,8 @@ static const struct ioctl_handler { unsigned int cmd; int (*func)(struct snd_seq_client *client, void *arg); } ioctl_handlers[] = { - { 0, NULL }, -}; - -static struct seq_ioctl_table { - unsigned int cmd; - int (*func)(struct snd_seq_client *client, void __user * arg); -} ioctl_tables[] = { + { SNDRV_SEQ_IOCTL_PVERSION, snd_seq_ioctl_pversion }, + { SNDRV_SEQ_IOCTL_CLIENT_ID, snd_seq_ioctl_client_id }, { SNDRV_SEQ_IOCTL_SYSTEM_INFO, snd_seq_ioctl_system_info }, { SNDRV_SEQ_IOCTL_RUNNING_MODE, snd_seq_ioctl_running_mode }, { SNDRV_SEQ_IOCTL_GET_CLIENT_INFO, snd_seq_ioctl_get_client_info }, @@ -2211,6 +2094,13 @@ static struct seq_ioctl_table { { 0, NULL }, }; +static struct seq_ioctl_table { + unsigned int cmd; + int (*func)(struct snd_seq_client *client, void __user * arg); +} ioctl_tables[] = { + { 0, NULL }, +}; + static long seq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct snd_seq_client *client = file->private_data; |