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pcm_hw: fix possible memory leak (coverity)

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This commit is contained in:
Jaroslav Kysela 2016-01-12 16:07:16 +01:00
parent 822e781a47
commit 0f4f48d377
2 changed files with 21 additions and 17 deletions
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2
src/pcm/pcm.c
View file

@ -7512,7 +7512,7 @@ snd_pcm_chmap_query_t **snd_pcm_query_chmaps(snd_pcm_t *pcm)
*/
void snd_pcm_free_chmaps(snd_pcm_chmap_query_t **maps)
{
snd_pcm_chmap_query_t **p = maps;
snd_pcm_chmap_query_t **p;
if (!maps)
return;
for (p = maps; *p; p++)

36
src/pcm/pcm_hw.c
View file

@ -1693,12 +1693,14 @@ int _snd_pcm_hw_open(snd_pcm_t **pcmp, const char *name,
err = snd_config_get_string(n, &str);
if (err < 0) {
SNDERR("Invalid type for %s", id);
return -EINVAL;
err = -EINVAL;
goto fail;
}
card = snd_card_get_index(str);
if (card < 0) {
SNDERR("Invalid value for %s", id);
return card;
err = card;
goto fail;
}
}
continue;
@ -1707,7 +1709,7 @@ int _snd_pcm_hw_open(snd_pcm_t **pcmp, const char *name,
err = snd_config_get_integer(n, &device);
if (err < 0) {
SNDERR("Invalid type for %s", id);
return err;
goto fail;
}
continue;
}
@ -1715,7 +1717,7 @@ int _snd_pcm_hw_open(snd_pcm_t **pcmp, const char *name,
err = snd_config_get_integer(n, &subdevice);
if (err < 0) {
SNDERR("Invalid type for %s", id);
return err;
goto fail;
}
continue;
}
@ -1738,7 +1740,7 @@ int _snd_pcm_hw_open(snd_pcm_t **pcmp, const char *name,
err = snd_config_get_integer(n, &val);
if (err < 0) {
SNDERR("Invalid type for %s", id);
return err;
goto fail;
}
rate = val;
continue;
@ -1747,7 +1749,7 @@ int _snd_pcm_hw_open(snd_pcm_t **pcmp, const char *name,
err = snd_config_get_string(n, &str);
if (err < 0) {
SNDERR("invalid type for %s", id);
return err;
goto fail;
}
format = snd_pcm_format_value(str);
continue;
@ -1757,7 +1759,7 @@ int _snd_pcm_hw_open(snd_pcm_t **pcmp, const char *name,
err = snd_config_get_integer(n, &val);
if (err < 0) {
SNDERR("Invalid type for %s", id);
return err;
goto fail;
}
channels = val;
continue;
@ -1767,26 +1769,24 @@ int _snd_pcm_hw_open(snd_pcm_t **pcmp, const char *name,
chmap = _snd_pcm_parse_config_chmaps(n);
if (!chmap) {
SNDERR("Invalid channel map for %s", id);
return -EINVAL;
goto fail;
}
continue;
}
SNDERR("Unknown field %s", id);
snd_pcm_free_chmaps(chmap);
return -EINVAL;
err = -EINVAL;
goto fail;
}
if (card < 0) {
SNDERR("card is not defined");
snd_pcm_free_chmaps(chmap);
return -EINVAL;
err = -EINVAL;
goto fail;
}
err = snd_pcm_hw_open(pcmp, name, card, device, subdevice, stream,
mode | (nonblock ? SND_PCM_NONBLOCK : 0),
0, sync_ptr_ioctl);
if (err < 0) {
snd_pcm_free_chmaps(chmap);
return err;
}
if (err < 0)
goto fail;
if (nonblock && ! (mode & SND_PCM_NONBLOCK)) {
/* revert to blocking mode for read/write access */
snd_pcm_hw_nonblock(*pcmp, 0);
@ -1810,6 +1810,10 @@ int _snd_pcm_hw_open(snd_pcm_t **pcmp, const char *name,
hw->chmap_override = chmap;
return 0;
fail:
snd_pcm_free_chmaps(chmap);
return err;
}
#ifndef DOC_HIDDEN