linux-kernel - [PATCH] ALSA: pci: Fix memory leak in snd_ali

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Date:   Sun, 27 Oct 2019 13:30:27 -0500
From:   Navid Emamdoost <navid.emamdoost@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     emamd001@....edu, kjlu@....edu, smccaman@....edu,
        Navid Emamdoost <navid.emamdoost@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Richard Fontana <rfontana@...hat.com>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ALSA: pci: Fix memory leak in snd_ali_create

In the implementation of snd_ali_create() the memory allocated for codec
is leaked in case of an error. Release codec if snd_ali_chip_init()
fails.

Fixes: f9ab2b1c3ab5 ("[ALSA] ali5451 - Code clean up, irq handler fix")
Signed-off-by: Navid Emamdoost <navid.emamdoost@...il.com>
---
 sound/pci/ali5451/ali5451.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c
index 6e28e381c21a..3ed07a18be4d 100644
--- a/sound/pci/ali5451/ali5451.c
+++ b/sound/pci/ali5451/ali5451.c
@@ -2179,6 +2179,7 @@ static int snd_ali_create(struct snd_card *card,
 	err = snd_ali_chip_init(codec);
 	if (err < 0) {
 		dev_err(card->dev, "ali create: chip init error.\n");
+		snd_ali_free(codec);
 		return err;
 	}
 
-- 
2.17.1