X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fnet%2Fdm9000.c;h=254ec62b5f58d4e13f3848040362e7660108b6d3;hb=c23135573f37facd18edb2e8e8512c67928c54ac;hp=bcf92917bbf3192504bd90e48e4165716615208d;hpb=c58bd34d00e04df9a0691732086cf8102b20d907;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index bcf92917bbf..254ec62b5f5 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -930,13 +930,15 @@ static irqreturn_t dm9000_interrupt(int irq, void *dev_id)
 	struct net_device *dev = dev_id;
 	board_info_t *db = netdev_priv(dev);
 	int int_status;
+	unsigned long flags;
 	u8 reg_save;
 
 	dm9000_dbg(db, 3, "entering %s\n", __func__);
 
 	/* A real interrupt coming */
 
-	spin_lock(&db->lock);
+	/* holders of db->lock must always block IRQs */
+	spin_lock_irqsave(&db->lock, flags);
 
 	/* Save previous register address */
 	reg_save = readb(db->io_addr);
@@ -972,7 +974,7 @@ static irqreturn_t dm9000_interrupt(int irq, void *dev_id)
 	/* Restore previous register address */
 	writeb(reg_save, db->io_addr);
 
-	spin_unlock(&db->lock);
+	spin_unlock_irqrestore(&db->lock, flags);
 
 	return IRQ_HANDLED;
 }