From: Michael Buesch <mb@bu3sch.de>
Date: Thu, 12 Jun 2008 09:58:56 +0000 (+0200)
Subject: b43: Fix possible NULL pointer dereference in DMA code
X-Git-Tag: v2.6.26-rc7~20^2~25^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=028118a5f09a9c807e6b43e2231efdff9f224c74;p=pandora-kernel.git

b43: Fix possible NULL pointer dereference in DMA code

This fixes a possible NULL pointer dereference in an error path of the
DMA allocation error checking code. This is also necessary for a future
DMA API change that is on its way into the mainline kernel that adds
an additional dev parameter to dma_mapping_error().

This patch moves the whole struct b43_dmaring struct initialization
right before any DMA allocation operation.

Reported-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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