linux-kernel - [PATCH] smc911x: Re-release spinlock on spurious interrupt

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Message-ID: <87psg1hqp8.fsf@slug.be.48ers.dk>
Date:	Thu, 20 Jul 2006 05:59:15 +0200
From:	Peter Korsgaard <jacmet@...site.dk>
To:	dustin@...soria.com, netdev@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] smc911x: Re-release spinlock on spurious interrupt

Hi,

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

diff -Naur linux-2.6.18-rc2.orig/drivers/net/smc911x.c linux-2.6.18-rc2/drivers/net/smc911x.c
--- linux-2.6.18-rc2.orig/drivers/net/smc911x.c	2006-07-20 10:26:20.000000000 +0200
+++ linux-2.6.18-rc2/drivers/net/smc911x.c	2006-07-20 17:44:26.000000000 +0200
@@ -1092,6 +1092,7 @@
 	/* 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;
 	}

-- 
Bye, Peter Korsgaard
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