From: Oleg Nesterov <oleg@redhat.com>
Date: Fri, 23 Mar 2012 15:02:49 -0700
Subject: [3/5] usermodehelper: ____call_usermodehelper() doesn't need
 do_exit()

commit 5b9bd473e3b8a8c6c4ae99be475e6e9b27568555 upstream.

Minor cleanup.  ____call_usermodehelper() can simply return, no need to
call do_exit() explicitely.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Tejun Heo <tj@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/kmod.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/kmod.c b/kernel/kmod.c
index 8341de9..685b246 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -188,7 +188,7 @@ static int ____call_usermodehelper(void *data)
 	/* Exec failed? */
 fail:
 	sub_info->retval = retval;
-	do_exit(0);
+	return 0;
 }
 
 void call_usermodehelper_freeinfo(struct subprocess_info *info)