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From: Roel Kluin <roel.kluin@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 2/2] gianfar: irq_of_parse_and_map() error unnoticed
Date: Mon, 27 Apr 2009 13:05:30 +0200	[thread overview]
Message-ID: <49F5917A.3060909@gmail.com> (raw)
In-Reply-To: <20090427.031116.43598009.davem@davemloft.net>

priv->interruptTransmit, -Receive and -Error are unsigned, so the error path
wasn't taken when irq_of_parse_and_map() returned an incorrect irq.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com> 
---
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index b2c4967..55c2ce8 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -203,9 +203,9 @@ static int gfar_of_init(struct net_device *dev)
 
 		priv->interruptError = irq_of_parse_and_map(np, 2);
 
-		if (priv->interruptTransmit < 0 ||
-				priv->interruptReceive < 0 ||
-				priv->interruptError < 0) {
+		if (priv->interruptTransmit == NO_IRQ ||
+				priv->interruptReceive == NO_IRQ ||
+				priv->interruptError == NO_IRQ) {
 			err = -EINVAL;
 			goto err_out;
 		}

  reply	other threads:[~2009-04-27 11:05 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-23 12:52 [PATCH] gianfar: irq_of_parse_and_map() error unnoticed Roel Kluin
2009-04-27 10:11 ` David Miller
2009-04-27 11:05   ` Roel Kluin [this message]
2009-04-27 19:23     ` [PATCH 2/2] " Andrew Morton

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