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Diffstat (limited to 'sound/core/timer.c')
-rw-r--r--sound/core/timer.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/core/timer.c b/sound/core/timer.c
index 7c1cbf0a0dc4..67ebf1c21c04 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -328,6 +328,8 @@ int snd_timer_close(struct snd_timer_instance *timeri)
mutex_unlock(&register_mutex);
} else {
timer = timeri->timer;
+ if (snd_BUG_ON(!timer))
+ goto out;
/* wait, until the active callback is finished */
spin_lock_irq(&timer->lock);
while (timeri->flags & SNDRV_TIMER_IFLG_CALLBACK) {
@@ -353,6 +355,7 @@ int snd_timer_close(struct snd_timer_instance *timeri)
}
mutex_unlock(&register_mutex);
}
+ out:
if (timeri->private_free)
timeri->private_free(timeri);
kfree(timeri->owner);
@@ -531,6 +534,8 @@ int snd_timer_stop(struct snd_timer_instance *timeri)
if (err < 0)
return err;
timer = timeri->timer;
+ if (!timer)
+ return -EINVAL;
spin_lock_irqsave(&timer->lock, flags);
timeri->cticks = timeri->ticks;
timeri->pticks = 0;