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Subject[GIT PULL] irq fix
Linus,

Please pull the latest irq-urgent-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git irq-urgent-for-linus

Thanks,

Ingo

------------------>
Jesper Juhl (1):
genirq: Prevent potential NULL dereference in irq_set_irq_wake()


kernel/irq/manage.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index d64bafb..0a7840ae 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -491,6 +491,9 @@ int irq_set_irq_wake(unsigned int irq, unsigned int on)
struct irq_desc *desc = irq_get_desc_buslock(irq, &flags);
int ret = 0;

+ if (!desc)
+ return -EINVAL;
+
/* wakeup-capable irqs can be shared between drivers that
* don't need to have the same sleep mode behaviors.
*/

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