Name: Redundant up operation in stop_machine.c
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (authored)

Yingchao Zhou <puppylove_0814@yahoo.com.cn> noticed that we up() in
stop_machine on failure, and also in the caller (unconditionally).

Index: linux-2.6.13-rc7-git1-Misc/kernel/stop_machine.c
===================================================================
--- linux-2.6.13-rc7-git1-Misc.orig/kernel/stop_machine.c	2005-08-26 11:18:00.000000000 +1000
+++ linux-2.6.13-rc7-git1-Misc/kernel/stop_machine.c	2005-08-26 12:05:01.000000000 +1000
@@ -115,7 +115,6 @@
 	/* If some failed, kill them all. */
 	if (ret < 0) {
 		stopmachine_set_state(STOPMACHINE_EXIT);
-		up(&stopmachine_mutex);
 		return ret;
 	}