linux-kernel - [PATCH] workqueue: Fix a compile warning in work

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Date:	Sun, 28 Feb 2010 12:00:02 +1100
From:	Anton Blanchard <anton@...ba.org>
To:	Tejun Heo <tj@...nel.org>
Cc:	torvalds@...ux-foundation.org, mingo@...e.hu, peterz@...radead.org,
	awalls@...ix.net, linux-kernel@...r.kernel.org, jeff@...zik.org,
	akpm@...ux-foundation.org, jens.axboe@...cle.com,
	rusty@...tcorp.com.au, cl@...ux-foundation.org,
	dhowells@...hat.com, arjan@...ux.intel.com, avi@...hat.com,
	johannes@...solutions.net, andi@...stfloor.org, oleg@...hat.com
Subject: [PATCH] workqueue: Fix a compile warning in work_busy


Ensure ret is initialised to avoid the following warning:

kernel/workqueue.c: In function ‘work_busy’:
kernel/workqueue.c:2697: warning: ‘ret’ may be used uninitialized in this function

Signed-off-by: Anton Blanchard <anton@...ba.org>
---

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 5871708..6003afd 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -2682,7 +2682,7 @@ unsigned int work_busy(struct work_struct *work)
 {
 	struct global_cwq *gcwq = get_work_gcwq(work);
 	unsigned long flags;
-	unsigned int ret;
+	unsigned int ret = 0;
 
 	if (!gcwq)
 		return false;
--
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