From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 31 Oct 2014 10:40:39 +0000 (+0300)
Subject: staging: r8188eu: get a string from the user correctly
X-Git-Tag: omap-for-v3.19/fixes-rc1~73^2~482
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d0915b2255bfbdd537fd6a52f9a0a7037ecbe2d5;p=pandora-kernel.git

staging: r8188eu: get a string from the user correctly

The original code had two bugs:
1) It didn't check if the string was zero length so it could oops when
   it tried to dereference the ZERO_SIZE_PTR.
2) It didn't enforce that the string was NUL terminated.

It was also messy as pants.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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