---

yaml --- r: 132556 b: refs/heads/master c: e3162d3 h: refs/heads/master v: v3
git-mirror · Mar 23, 2009 · d8a68ea · d8a68ea
1 parent 05809b0
commit d8a68ea
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Showing 2 changed files with 5 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6580f57d485f70851218813fa053d971915f61fb
+refs/heads/master: e3162d381fc359ebe5c98a3e216888a7cb200051
diff --git a/trunk/drivers/net/dm9000.c b/trunk/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;
 }