From: Vivek Gautam Date: Sat, 22 Sep 2012 12:41:19 +0000 (+0530) Subject: usb: host: xhci: Fix Null pointer dereferencing with 71c731a for non-x86 systems X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~73^2~4^2~1 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=457a73d346187c2cc5d599072f38676f18f130e0;p=pandora-kernel.git usb: host: xhci: Fix Null pointer dereferencing with 71c731a for non-x86 systems In 71c731a: usb: host: xhci: Fix Compliance Mode on SN65LVPE502CP Hardware when extracting DMI strings (vendor or product_name) to mark them as quirk we may get NULL pointer in case of non-x86 systems which won't define CONFIG_DMI. Hence susbsequent strstr() calls crash while driver probing. So, returning 'false' here in case we get a NULL vendor or product_name. This is tested with ARM (exynos) system. This patch should be backported to stable kernels as old as 3.6, that contain the commit 71c731a296f1b08a3724bd1b514b64f1bda87a23 "usb: host: xhci: Fix Compliance Mode on SN65LVPE502CP Hardware" Signed-off-by: Vivek Gautam Signed-off-by: Sarah Sharp Reported-by: Sebastian Gottschall (DD-WRT) Cc: stable@vger.kernel.org --- Reading git-diff-tree failed