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ALSA: gus: Fix some error handling paths related to get_bpos() usage 

[ Upstream commit 9df39a872c ]

If get_bpos() fails, it is likely that the corresponding error code should
be returned.

Fixes: a6970bb1dd ("ALSA: gus: Convert to the new PCM ops")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/d9ca841edad697154afa97c73a5d7a14919330d9.1727984008.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christophe JAILLET 2024-10-03 21:34:01 +02:00 committed by Greg Kroah-Hartman
parent 2c3c1f87cf
commit b0f3c6a2d0
1 changed files with 2 additions and 2 deletions
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4
sound/isa/gus/gus_pcm.c
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@ -378,7 +378,7 @@ static int snd_gf1_pcm_playback_copy(struct snd_pcm_substream *substream,
bpos = get_bpos(pcmp, voice, pos, len);
if (bpos < 0)
return pos;
return bpos;
if (copy_from_iter(runtime->dma_area + bpos, len, src) != len)
return -EFAULT;
return playback_copy_ack(substream, bpos, len);
@ -395,7 +395,7 @@ static int snd_gf1_pcm_playback_silence(struct snd_pcm_substream *substream,
bpos = get_bpos(pcmp, voice, pos, len);
if (bpos < 0)
return pos;
return bpos;
snd_pcm_format_set_silence(runtime->format, runtime->dma_area + bpos,
bytes_to_samples(runtime, count));
return playback_copy_ack(substream, bpos, len);