From: Colin Cross <ccross@android.com>
Date: Fri, 13 Dec 2013 22:25:00 +0000 (-0800)
Subject: ion: fix crash when alloc len is -1
X-Git-Tag: v3.14-rc1~150^2~391
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a14baf71b91845a7f68438d48f462cb754699ae2;p=pandora-kernel.git

ion: fix crash when alloc len is -1

If userspace passes a length between -4095 and -1 to allocate it
will pass the len != 0 check, but when len is page aligned it will
be 0.  Check len after page aligning.

Drop the warning as well, userspace shouldn't be able to trigger
a warning in the kernel.

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

Reading git-diff-tree failed