From: Nate Case <ncase@xes-inc.com>
Date: Mon, 12 May 2008 20:14:14 +0000 (+1000)
Subject: [POWERPC] Fix uninitialized variable bug in copy_{to|from}_user
X-Git-Tag: v2.6.26-rc3~24^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9c8387afdc93f90bf0241411d44e011d8d5b76df;p=pandora-kernel.git

[POWERPC] Fix uninitialized variable bug in copy_{to|from}_user

Calls to copy_to_user() or copy_from_user() can fail when copying N
bytes, where N is a constant less than 8, but not 1, 2, 4, or 8,
because 'ret' is not initialized and is only set if the size is 1,
2, 4 or 8, but is tested after the switch statement for any constant
size <= 8.  This fixes it by initializing 'ret' to 1, causing the
code to fall through to the __copy_tofrom_user call for sizes other
than 1, 2, 4 or 8.

Signed-off-by: Dave Scidmore <dscidmore@xes-inc.com>
Signed-off-by: Nate Case <ncase@xes-inc.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

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