tree 3d45621da991a4b2b567c4447851fe6f7b5e87c3
parent cac7f2429872d3733dc3f9915857b1691da2eb2f
author Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> 1414145919 +0300
committer Marek Szyprowski <m.szyprowski@samsung.com> 1414411254 +0100

mm: cma: Don't crash on allocation if CMA area can't be activated

If activation of the CMA area fails its mutex won't be initialized,
leading to an oops at allocation time when trying to lock the mutex. Fix
this by setting the cma area count field to 0 when activation fails,
leading to allocation returning NULL immediately.

Cc: <stable@vger.kernel.org>  # v3.17
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>