From: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Date: Tue, 9 Aug 2011 23:31:54 +0000 (-0700)
Subject: USB: Avoid NULL pointer deref in usb_hcd_alloc_bandwidth.
X-Git-Tag: v3.1-rc4~5^2~8^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a9af4fdf6d5eeb3200a088354d266a87e8260b0;p=pandora-kernel.git

USB: Avoid NULL pointer deref in usb_hcd_alloc_bandwidth.

usb_ifnum_to_if() can return NULL if the USB device does not have a
configuration installed (usb_device->actconfig == NULL), or if we can't
find the interface number in the installed configuration.  Return an
error instead of crashing.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
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