From: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Date: Sat, 20 Dec 2008 04:36:38 +0000 (+0530)
Subject: sched: nominate preferred wakeup cpu, fix
X-Git-Tag: v2.6.29-rc1~538^2~2
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=36dffab679c7eeb91c2507400cf4da6e9e01164e;p=linux-2.6-omap-h63xx.git

sched: nominate preferred wakeup cpu, fix

Andrew Morton reported:

> kernel/sched.c: In function 'schedule':
> kernel/sched.c:3679: warning: 'active_balance' may be used uninitialized in this function
>
> This warning is correct - the code is buggy.

In sched.c load_balance_newidle, there's real potential use of
uninitialised variable - fix it.

Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/kernel/sched.c b/kernel/sched.c
index ae5ca3f9e77..756d981d91a 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3670,7 +3670,7 @@ redo:
 	}
 
 	if (!ld_moved) {
-		int active_balance;
+		int active_balance = 0;
 
 		schedstat_inc(sd, lb_failed[CPU_NEWLY_IDLE]);
 		if (!sd_idle && sd->flags & SD_SHARE_CPUPOWER &&