From: Harsh Kumar <harsh1kumar@gmail.com>
Date: Fri, 31 May 2013 15:30:42 +0000 (+0530)
Subject: Staging: winbond: Check for unsuccessful allocation immediately
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~76^2~320
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d3d472b6e57e55132a0c2a048e3b18759c73ee7b;p=pandora-kernel.git

Staging: winbond: Check for unsuccessful allocation immediately

Check to see if allocation by kzalloc() or usb_alloc_urb() was unsuccessful
immediately after the allocation. Exit from the function can be right at that
point in case of allocation failure.
This avoids unnecessary use of usb_alloc_urb() & usb_free_urb() if kzalloc()
returns NULL.
Also, makes the code better structured & easier to understand.

Signed-off-by: Harsh Kumar <harsh1kumar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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