From: Peter Korsgaard <jacmet@sunsite.dk>

The smc911x driver forgets to release the spinlock on spurious interrupts. 
This little patch fixes it.

Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 drivers/net/smc911x.c |    1 +
 1 file changed, 1 insertion(+)

diff -puN drivers/net/smc911x.c~smc911x-re-release-spinlock-on-spurious-interrupt drivers/net/smc911x.c
--- a/drivers/net/smc911x.c~smc911x-re-release-spinlock-on-spurious-interrupt
+++ a/drivers/net/smc911x.c
@@ -1092,6 +1092,7 @@ static irqreturn_t smc911x_interrupt(int
 	/* Spurious interrupt check */
 	if ((SMC_GET_IRQ_CFG() & (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) !=
 		(INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) {
+		spin_unlock_irqrestore(&lp->lock, flags);
 		return IRQ_NONE;
 	}
 
_