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ALSA: pcm: remember to always call va_end() on stuff that we va_start() 

The Coverity checker spotted that we do not always remember to call
va_end() on 'args' in failure paths in snd_pcm_hw_rule_add().
Here's a patch to fix that up (compile tested only) - it also removes
some annoying trailing whitespace that caught my eye while I was in the
area..

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jesper Juhl 2010-12-21 00:03:17 +01:00 committed by Takashi Iwai
parent 022c92befa
commit 87a1c8aaa0
1 changed files with 7 additions and 3 deletions
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10
sound/core/pcm_lib.c
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@ -1070,8 +1070,10 @@ int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond,
struct snd_pcm_hw_rule *new;
unsigned int new_rules = constrs->rules_all + 16;
new = kcalloc(new_rules, sizeof(*c), GFP_KERNEL);
if (!new)
if (!new) {
va_end(args);
return -ENOMEM;
}
if (constrs->rules) {
memcpy(new, constrs->rules,
constrs->rules_num * sizeof(*c));
@ -1087,8 +1089,10 @@ int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond,
c->private = private;
k = 0;
while (1) {
if (snd_BUG_ON(k >= ARRAY_SIZE(c->deps)))
if (snd_BUG_ON(k >= ARRAY_SIZE(c->deps))) {
va_end(args);
return -EINVAL;
}
c->deps[k++] = dep;
if (dep < 0)
break;
@ -1097,7 +1101,7 @@ int snd_pcm_hw_rule_add(struct snd_pcm_runtime *runtime, unsigned int cond,
constrs->rules_num++;
va_end(args);
return 0;
}
}
EXPORT_SYMBOL(snd_pcm_hw_rule_add);