From: Johannes Weiner <hannes@cmpxchg.org>
Date: Fri, 13 Feb 2009 03:38:04 +0000 (+0100)
Subject: irq: use GFP_KERNEL for action allocation in request_irq()
X-Git-Tag: v2.6.30-rc1~3^2~10^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0e43785c57fee50fbc00ea0378e941efb61fa0c2;p=platform%2Fkernel%2Flinux-exynos.git

irq: use GFP_KERNEL for action allocation in request_irq()

request_irq() calls into proc code via __setup_irq() which is not safe
in an atomic context, so request_irq() can itself use the more
reliable GFP_KERNEL allocation for the action descriptor.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index cd0cd8d..1c50550 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -717,7 +717,7 @@ int request_irq(unsigned int irq, irq_handler_t handler,
 	if (!handler)
 		return -EINVAL;
 
-	action = kmalloc(sizeof(struct irqaction), GFP_ATOMIC);
+	action = kmalloc(sizeof(struct irqaction), GFP_KERNEL);
 	if (!action)
 		return -ENOMEM;