snd_ctl_add() could fail, so let's check its return value and return its error code upstream upon failure.

Signed-off-by: Aditya Pakki pakki001@umn.edu --- sound/isa/sb/sb16_main.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/sound/isa/sb/sb16_main.c b/sound/isa/sb/sb16_main.c index 37e6ce7b0b13..981d65d122b6 100644 --- a/sound/isa/sb/sb16_main.c +++ b/sound/isa/sb/sb16_main.c @@ -879,10 +879,14 @@ int snd_sb16dsp_pcm(struct snd_sb *chip, int device) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_sb16_playback_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_sb16_capture_ops);

- if (chip->dma16 >= 0 && chip->dma8 != chip->dma16) - snd_ctl_add(card, snd_ctl_new1(&snd_sb16_dma_control, chip)); - else + if (chip->dma16 >= 0 && chip->dma8 != chip->dma16) { + err = snd_ctl_add(card, snd_ctl_new1( + &snd_sb16_dma_control, chip)); + if (err) + return err; + } else { pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX; + }

snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_isa_data(),