msm: kgsl: Handle failure of find_process_private()

Handle the case of NULL return from find_process_private() upon
its failure by failing from get_process_private().

Change-Id: Id42ae795d140bd67d8a36496f840387858e5f779
Signed-off-by: Harsh Vardhan Dwivedi <hdwivedi@codeaurora.org>
1 file changed