linux-kernel - [PATCH] ASoC: omap-hdmi-audio: Add missing error check for devm

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Message-Id: <1423732082-23815-1-git-send-email-kiran.padwal@smartplayin.com>
Date:	Thu, 12 Feb 2015 14:38:02 +0530
From:	Kiran Padwal <kiran.padwal@...rtplayin.com>
To:	Mark Brown <broonie@...nel.org>
Cc:	Liam Girdwood <lgirdwood@...il.com>,
	Jarkko Nikula <jarkko.nikula@...mer.com>,
	Peter Ujfalusi <peter.ujfalusi@...com>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>,
	linux-omap@...r.kernel.org, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org,
	Kiran Padwal <kiran.padwal21@...il.com>,
	Kiran Padwal <kiran.padwal@...rtplayin.com>
Subject: [PATCH] ASoC: omap-hdmi-audio: Add missing error check for devm_kzalloc

This patch add a missing check on the return value of devm_kzalloc,
which would cause a NULL pointer dereference in a OOM situation.

Signed-off-by: Kiran Padwal <kiran.padwal@...rtplayin.com>
---
 sound/soc/omap/omap-hdmi-audio.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/omap/omap-hdmi-audio.c b/sound/soc/omap/omap-hdmi-audio.c
index ccfb41c..f7eb42a 100644
--- a/sound/soc/omap/omap-hdmi-audio.c
+++ b/sound/soc/omap/omap-hdmi-audio.c
@@ -352,6 +352,9 @@ static int omap_hdmi_audio_probe(struct platform_device *pdev)
 		return ret;
 
 	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+	if (!card)
+		return -ENOMEM;
+
 	card->name = devm_kasprintf(dev, GFP_KERNEL,
 				    "HDMI %s", dev_name(ad->dssdev));
 	card->owner = THIS_MODULE;
-- 
1.7.9.5

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