From: Colin Ian King <colin.king@canonical.com>
Date: Wed, 14 Nov 2018 21:31:48 +0000 (+0000)
Subject: ASoC: amd: fix memory leak of i2s_data on error return
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=46dce4042659755a2b9753369d0c2d8ca33e35cf;p=openwrt%2Fstaging%2Fblogic.git

ASoC: amd: fix memory leak of i2s_data on error return

Currently when snd_pcm_hw_constraint_integer fails there is
a memory leak of i2s_data on the error return path. Fix this by
kfree'ing i2s_data before returning.

Detected by CoverityScan, CID#1475479 ("Resource leak")

Fixes: 0b87d6bcd648 ("ASoC: amd: add acp3x pcm driver dma ops")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c
index 2e61cef00f41..b16cdd187139 100644
--- a/sound/soc/amd/raven/acp3x-pcm-dma.c
+++ b/sound/soc/amd/raven/acp3x-pcm-dma.c
@@ -309,6 +309,7 @@ static int acp3x_dma_open(struct snd_pcm_substream *substream)
 					    SNDRV_PCM_HW_PARAM_PERIODS);
 	if (ret < 0) {
 		dev_err(component->dev, "set integer constraint failed\n");
+		kfree(i2s_data);
 		return ret;
 	}