linux-kernel - [PATCH 3.11 32/93] ARM: imx: fix error handling in ipu device registration

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Message-Id: <1403528592-2163-33-git-send-email-luis.henriques@canonical.com>
Date:	Mon, 23 Jun 2014 14:02:11 +0100
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Emil Goode <emilgoode@...il.com>,
	Shawn Guo <shawn.guo@...escale.com>,
	Olof Johansson <olof@...om.net>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.11 32/93] ARM: imx: fix error handling in ipu device registration

3.11.10.12 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Emil Goode <emilgoode@...il.com>

commit d1d70e5dc2cfa9047bb935c41ba808ebb8135696 upstream.

If we fail to allocate struct platform_device pdev we
dereference it after the goto label err.

This bug was found using coccinelle.

Fixes: afa77ef (ARM: mx3: dynamically allocate "ipu-core" devices)
Signed-off-by: Emil Goode <emilgoode@...il.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@...escale.com>
Signed-off-by: Olof Johansson <olof@...om.net>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 arch/arm/mach-imx/devices/platform-ipu-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/devices/platform-ipu-core.c b/arch/arm/mach-imx/devices/platform-ipu-core.c
index fc4dd7cedc11..6bd7c3f37ac0 100644
--- a/arch/arm/mach-imx/devices/platform-ipu-core.c
+++ b/arch/arm/mach-imx/devices/platform-ipu-core.c
@@ -77,7 +77,7 @@ struct platform_device *__init imx_alloc_mx3_camera(
 
 	pdev = platform_device_alloc("mx3-camera", 0);
 	if (!pdev)
-		goto err;
+		return ERR_PTR(-ENOMEM);
 
 	pdev->dev.dma_mask = kmalloc(sizeof(*pdev->dev.dma_mask), GFP_KERNEL);
 	if (!pdev->dev.dma_mask)
-- 
1.9.1

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