diff options
| -rw-r--r-- | sound/core/pcm_native.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 818dff1de545..c72dfd1fc1ed 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -1935,13 +1935,19 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream) static bool is_pcm_file(struct file *file) { struct inode *inode = file_inode(file); + struct snd_pcm *pcm; unsigned int minor; if (!S_ISCHR(inode->i_mode) || imajor(inode) != snd_major) return false; minor = iminor(inode); - return snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_PLAYBACK) || - snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_CAPTURE); + pcm = snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_PLAYBACK); + if (!pcm) + pcm = snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_CAPTURE); + if (!pcm) + return false; + snd_card_unref(pcm->card); + return true; } /* @@ -1996,7 +2002,6 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd) write_unlock_irq(&snd_pcm_link_rwlock); up_write(&snd_pcm_link_rwsem); _nolock: - snd_card_unref(substream1->pcm->card); kfree(group); _badf: fdput(f); |