linux-kernel - [PATCH] ASoC: SOF: ipc: Fix memory leak in sof_set_get_large_ctrl

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Message-Id: <20191027215330.12729-1-navid.emamdoost@gmail.com>
Date:   Sun, 27 Oct 2019 16:53:24 -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>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Guennadi Liakhovetski <guennadi.liakhovetski@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Pan Xiuli <xiuli.pan@...ux.intel.com>,
        Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
        Slawomir Blauciak <slawomir.blauciak@...ux.intel.com>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ASoC: SOF: ipc: Fix memory leak in sof_set_get_large_ctrl_data

In the implementation of sof_set_get_large_ctrl_data() there is a memory
leak in case an error. Release partdata if sof_get_ctrl_copy_params()
fails.

Fixes: 54d198d5019d ("ASoC: SOF: Propagate sof_get_ctrl_copy_params() error properly")
Signed-off-by: Navid Emamdoost <navid.emamdoost@...il.com>
---
 sound/soc/sof/ipc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/sof/ipc.c b/sound/soc/sof/ipc.c
index b2f359d2f7e5..086eeeab8679 100644
--- a/sound/soc/sof/ipc.c
+++ b/sound/soc/sof/ipc.c
@@ -572,8 +572,10 @@ static int sof_set_get_large_ctrl_data(struct snd_sof_dev *sdev,
 	else
 		err = sof_get_ctrl_copy_params(cdata->type, partdata, cdata,
 					       sparams);
-	if (err < 0)
+	if (err < 0) {
+		kfree(partdata);
 		return err;
+	}
 
 	msg_bytes = sparams->msg_bytes;
 	pl_size = sparams->pl_size;
-- 
2.17.1