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ALSA: Fix uninintialized error return 

Static analysis with cppcheck found the following error:
  [sound/core/init.c:118]: (error) Uninitialized variable: err

..this was introduced by commit 2471b6c80a
("ALSA: info: Register proc entries recursively, too") where the call
to snd_info_card_register was removed and no longer setting the error
return in err.  When snd_info_create_card_entry fails to allocate a
an entry, the error path exits with garbage in err.  Fix is to return
-ENOMEM if entry fails to be allocated.

Fixes: 2471b6c80a ("ALSA: info: Register proc entries recursively, too")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
steinar/wifi_calib_4_9_kernel
Colin Ian King 2015-06-29 17:10:22 +01:00 committed by Takashi Iwai
parent 1947a114bf
commit 0755e74b8f
1 changed files with 1 additions and 2 deletions
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3
sound/core/init.c
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@ -109,13 +109,12 @@ static void snd_card_id_read(struct snd_info_entry *entry,
static int init_info_for_card(struct snd_card *card)
{
int err;
struct snd_info_entry *entry;
entry = snd_info_create_card_entry(card, "id", card->proc_root);
if (!entry) {
dev_dbg(card->dev, "unable to create card entry\n");
return err;
return -ENOMEM;
}
entry->c.text.read = snd_card_id_read;
card->proc_id = entry;