linux-kernel - [PATCH] workqueue: check the allocation of system_unbound

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Date:	Fri, 26 Nov 2010 11:19:51 +0900
From:	Hitoshi Mitake <mitake@....info.waseda.ac.jp>
To:	Tejun Heo <tj@...nel.org>
Cc:	linux-kernel@...r.kernel.org, mitake@....info.waseda.ac.jp,
	h.mitake@...il.com, Arjan van de Ven <arjan@...ux.intel.com>,
	David Howells <dhowells@...hat.com>
Subject: [PATCH] workqueue: check the allocation of system_unbound_wq

I found a trivial bug on initialization of workqueue.
Current init_workqueues doesn't check the result of
allocation of system_unbound_wq, this should be checked
like other queues.

Signed-off-by: Hitoshi Mitake <mitake@....info.waseda.ac.jp>
Cc: Arjan van de Ven <arjan@...ux.intel.com>
Cc: David Howells <dhowells@...hat.com>
---
 kernel/workqueue.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 90db1bd..b60374d 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3692,7 +3692,8 @@ static int __init init_workqueues(void)
 	system_nrt_wq = alloc_workqueue("events_nrt", WQ_NON_REENTRANT, 0);
 	system_unbound_wq = alloc_workqueue("events_unbound", WQ_UNBOUND,
 					    WQ_UNBOUND_MAX_ACTIVE);
-	BUG_ON(!system_wq || !system_long_wq || !system_nrt_wq);
+	BUG_ON(!system_wq || !system_long_wq ||
+		!system_nrt_wq || !system_unbound_wq);
 	return 0;
 }
 early_initcall(init_workqueues);
-- 
1.6.5.2

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