From: Colin Ian King colin.king@canonical.com
Static analysis with cppcheck found the following error: [sound/core/init.c:118]: (error) Uninitialized variable: err
..this was introduced by commit 2471b6c80a70e80de69f5ff4c37187c3912e5874 ("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.
Author: Takashi Iwai tiwai@suse.de Date: Mon May 18 09:20:24 2015 +0200
Fixes: 2471b6c80a ("ALSA: info: Register proc entries recursively, too") Signed-off-by: Colin Ian King colin.king@canonical.com --- sound/core/init.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/sound/core/init.c b/sound/core/init.c index 3e0ceba..20f37fb 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -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;