From: Timur Tabi <timur@freescale.com>
Date: Wed, 7 May 2008 19:19:59 +0000 (+1000)
Subject: [POWERPC] Add null pointer check to of_find_property
X-Git-Tag: v2.6.26-rc3~24^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=64e4566f6d590fbb284da061b9b664c2486dd2de;p=pandora-kernel.git

[POWERPC] Add null pointer check to of_find_property

Update function of_find_property() to return NULL if the device_node
passed to it is also NULL.  Otherwise, passing NULL will cause a null
pointer dereference.

Without this, the legacy_serial driver will crash if there's no
'chosen' node in the device tree.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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