diff options
Diffstat (limited to 'common/serdev.c')
| -rw-r--r-- | common/serdev.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/common/serdev.c b/common/serdev.c index 4a6dbefe61..3e0da0846e 100644 --- a/common/serdev.c +++ b/common/serdev.c @@ -9,6 +9,10 @@ static void serdev_device_poller(void *context) unsigned char *buf = serdev->buf; int ret, len; + if (serdev->locked) + return; + + serdev->locked = true; /* * Since this callback is a part of poller infrastructure we * want to use _non_interruptible version of the function @@ -37,6 +41,8 @@ static void serdev_device_poller(void *context) } else { poller_async_cancel(&serdev->poller); } + + serdev->locked = false; } static int serdev_device_set_polling_interval(struct param_d *param, void *serdev) |