linux-kernel - [PATCH 1/2] mac8390: propagate error code from request

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Date:	Tue, 1 Jun 2010 22:18:32 +1000 (EST)
From:	Finn Thain <fthain@...egraphics.com.au>
To:	David Miller <davem@...emloft.net>
cc:	geert@...ux-m68k.org, joe@...ches.com, p_gortmaker@...oo.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-m68k@...r.kernel.org
Subject: [PATCH 1/2] mac8390: propagate error code from request_irq


Use the request_irq() error code as the return value for mac8390_open(). 
EAGAIN doesn't make sense for Nubus slot IRQs. Only this driver can claim 
this IRQ (until the NIC is removed, which means everything is powered 
down).

Signed-off-by: Finn Thain <fthain@...egraphics.com.au>

Index: linux-2.6.34/drivers/net/mac8390.c
===================================================================
--- linux-2.6.34.orig/drivers/net/mac8390.c	2010-06-01 20:20:29.000000000 +1000
+++ linux-2.6.34/drivers/net/mac8390.c	2010-06-01 20:22:23.000000000 +1000
@@ -643,12 +643,13 @@ static int __init mac8390_initdev(struct
 
 static int mac8390_open(struct net_device *dev)
 {
+	int err;
+
 	__ei_open(dev);
-	if (request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev)) {
-		pr_info("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
-		return -EAGAIN;
-	}
-	return 0;
+	err = request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev);
+	if (err)
+		pr_info("%s: unable to get IRQ %d\n", dev->name, dev->irq);
+	return err;
 }
 
 static int mac8390_close(struct net_device *dev)
--
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