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>

1 files changed, 7 insertions, 3 deletions

diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index b75db8e9cc0f..11446a1506da 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -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);