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| author | Zhouyang Jia <jiazhouyang09@gmail.com> | 2018-06-11 16:18:40 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-06-11 15:23:00 +0200 |
| commit | 6d531e7b972cb62ded011c2dfcc2d9f72ea6c421 (patch) | |
| tree | b0c133c6a2eb2e9255970978a37e9f31dd493472 | |
| parent | ef1ffbe7889e99f5b5cccb41c89e5c94f50f3218 (diff) | |
ALSA: emu10k1: add error handling for snd_ctl_add
When snd_ctl_add fails, the lack of error-handling code may
cause unexpected results.
This patch adds error-handling code after calling snd_ctl_add.
Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/pci/emu10k1/emupcm.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c index d39458ab251f..69f9b100bd24 100644 --- a/sound/pci/emu10k1/emupcm.c +++ b/sound/pci/emu10k1/emupcm.c @@ -1858,7 +1858,9 @@ int snd_emu10k1_pcm_efx(struct snd_emu10k1 *emu, int device) if (!kctl) return -ENOMEM; kctl->id.device = device; - snd_ctl_add(emu->card, kctl); + err = snd_ctl_add(emu->card, kctl); + if (err < 0) + return err; snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci), 64*1024, 64*1024); |