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Message-Id: <1448280913-16061-1-git-send-email-sudipm.mukherjee@gmail.com>
Date:	Mon, 23 Nov 2015 17:45:13 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc:	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: [PATCH] ASoC: hdac_hdmi: fix possible NULL dereference

kzalloc() can return NULL if it fails, and then we will be dereferencing
a NULL pointer.

Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
---
 sound/soc/codecs/hdac_hdmi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
index d155262..205f2c2 100644
--- a/sound/soc/codecs/hdac_hdmi.c
+++ b/sound/soc/codecs/hdac_hdmi.c
@@ -200,6 +200,8 @@ static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
 	}
 
 	dd = kzalloc(sizeof(*dd), GFP_KERNEL);
+	if (!dd)
+		return -ENOMEM;
 	dd->format = snd_hdac_calc_stream_format(params_rate(hparams),
 			params_channels(hparams), params_format(hparams),
 			24, 0);
-- 
1.9.1

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