From: andrea merello <andrea.merello@gmail.com>
Date: Sat, 22 Feb 2014 16:57:23 +0000 (+0100)
Subject: rtl818x: check for pci_map_single() success when initializing RX ring
X-Git-Tag: v3.15-rc1~113^2~159^2^2~100
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ec1da08dd721f53b97e792c749d236907c764932;p=pandora-kernel.git

rtl818x: check for pci_map_single() success when initializing RX ring

During initialization a number of RX skbs are allocated and mapped
for DMA.
Currently if pci_map_single() fails, it will result in passing to the
HW a wrong DMA address (to write to!).

This patch adds check for this condition and eventually causes the
driver not to initialize, avoiding at least dangerous DMAs.

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

Reading git-diff-tree failed