tree 8e1604e6c45a8c0e46172fd51122acd059573e7a
parent ec7b1f2dd180afb1ce23aa44a7451e59bf2f3eb3
author Namjae Jeon <namjae.jeon@samsung.com> 1359816762 +0900
committer Jaegeuk Kim <jaegeuk.kim@samsung.com> 1360620902 +0900

f2fs: mark gc_thread as NULL when thread creation is failed

When gc thread creation is failed, mark gc_thread as NULL to avoid
crash while trying to stop invalid thread in stop_gc_thread->kthread_stop.
Instead make it return from:
	if (!gc_th)
       return;

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>