From: Colin King <colin.king@canonical.com>
To: Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
Takashi Iwai <tiwai@suse.com>,
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
alsa-devel@alsa-project.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] ASoC: rsnd: don't double free kctrl
Date: Thu, 8 Dec 2016 13:05:43 +0000 [thread overview]
Message-ID: <20161208130543.11560-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
On an error, snd_ctl_add already free's kctrl, so calling snd_ctl_free_one
to free it again leads to a double free error. Fix this by removing
the extraneous snd_ctl_free_one call.
Issue found using static analysis with CoverityScan, CID 1372908
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
sound/soc/sh/rcar/core.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 4bd68de..99b5b08 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -1030,10 +1030,8 @@ static int __rsnd_kctrl_new(struct rsnd_mod *mod,
return -ENOMEM;
ret = snd_ctl_add(card, kctrl);
- if (ret < 0) {
- snd_ctl_free_one(kctrl);
+ if (ret < 0)
return ret;
- }
cfg->update = update;
cfg->card = card;
--
2.10.2
next reply other threads:[~2016-12-08 13:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-08 13:05 Colin King [this message]
2016-12-09 0:04 ` Kuninori Morimoto
2016-12-15 12:22 ` Applied "ASoC: rsnd: don't double free kctrl" to the asoc tree Mark Brown
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