Commit 0755e74b authored Jun 29, 2015 by Colin Ian King Committed by Takashi Iwai Jun 29, 2015

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 2471b6c8
("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: 2471b6c8 ("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>

parent 1947a114

sound/core/init.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -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;