summaryrefslogtreecommitdiffstats
path: root/drivers/media/rc/rc-ir-raw.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/rc/rc-ir-raw.c')
-rw-r--r--drivers/media/rc/rc-ir-raw.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/media/rc/rc-ir-raw.c b/drivers/media/rc/rc-ir-raw.c
index 374f83105a234..7675b7ee5bc76 100644
--- a/drivers/media/rc/rc-ir-raw.c
+++ b/drivers/media/rc/rc-ir-raw.c
@@ -14,7 +14,7 @@
static LIST_HEAD(ir_raw_client_list);
/* Used to handle IR raw handler extensions */
-static DEFINE_MUTEX(ir_raw_handler_lock);
+DEFINE_MUTEX(ir_raw_handler_lock);
static LIST_HEAD(ir_raw_handler_list);
static atomic64_t available_protocols = ATOMIC64_INIT(0);
@@ -621,9 +621,17 @@ void ir_raw_event_unregister(struct rc_dev *dev)
list_for_each_entry(handler, &ir_raw_handler_list, list)
if (handler->raw_unregister)
handler->raw_unregister(dev);
- mutex_unlock(&ir_raw_handler_lock);
+
+ lirc_bpf_free(dev);
ir_raw_event_free(dev);
+
+ /*
+ * A user can be calling bpf(BPF_PROG_{QUERY|ATTACH|DETACH}), so
+ * ensure that the raw member is null on unlock; this is how
+ * "device gone" is checked.
+ */
+ mutex_unlock(&ir_raw_handler_lock);
}
/*