From: Jesper Juhl <jj@chaosbits.net>
Date: Thu, 8 Mar 2012 16:00:58 +0000 (+0000)
Subject: intel, gma500, lvds: Fix use after free and mem leak in psb_intel_lvds_init()
X-Git-Tag: v3.4-rc1~143^2~62^2~42
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aa7c62af10b6ba7f0496ee3a1a760ad216426720;p=pandora-kernel.git

intel, gma500, lvds: Fix use after free and mem leak in psb_intel_lvds_init()

In psb_intel_lvds_init(), if we fail to allocate memory for
'psb_intel_connector' we free the memory we previously allocated for
'psb_intel_encoder', but we then proceed to use that free'd pointer
when we do 'psb_intel_encoder->dev_priv = lvds_priv;'.

We may also leak the memory we allocated for 'psb_intel_encoder' if we
'goto failed_connector;' and the variable goes out of scope.

While I was there anyway, I also removed the pointless 'if
(psb_intel_connector)' before freeing it at the 'failed_connector:'
label - kfree() deals gracefully with NULL pointers, so it is not
needed.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

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