diff options
Diffstat (limited to 'sound/core/timer.c')
| -rw-r--r-- | sound/core/timer.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/core/timer.c b/sound/core/timer.c index b6f076bbc72d..61a0cec6e1f6 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -883,6 +883,11 @@ int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid, if (snd_BUG_ON(!tid)) return -EINVAL; + if (tid->dev_class == SNDRV_TIMER_CLASS_CARD || + tid->dev_class == SNDRV_TIMER_CLASS_PCM) { + if (WARN_ON(!card)) + return -EINVAL; + } if (rtimer) *rtimer = NULL; timer = kzalloc(sizeof(*timer), GFP_KERNEL); |