From: Eric Sesterhenn <snakebyte@gmx.de>
Date: Tue, 10 Oct 2006 21:33:28 +0000 (-0700)
Subject: [PATCH] Remove unnecessary check in drivers/net/depca.c
X-Git-Tag: v2.6.20-rc2~6^2~13^2~468^2~113
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=107ce6d21b746f33f85f4385b9802b3ae928f876;p=~shefty%2Frdma-dev.git

[PATCH] Remove unnecessary check in drivers/net/depca.c

This was spotted by coverity (cid #793).  All callers dereference dev
before calling this functions, and we dereference it earlier in the
function, when initializing lp.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

diff --git a/drivers/net/depca.c b/drivers/net/depca.c
index f87f6e3dc72..5113eef755b 100644
--- a/drivers/net/depca.c
+++ b/drivers/net/depca.c
@@ -1252,24 +1252,22 @@ static void set_multicast_list(struct net_device *dev)
 	struct depca_private *lp = (struct depca_private *) dev->priv;
 	u_long ioaddr = dev->base_addr;
 
-	if (dev) {
-		netif_stop_queue(dev);
-		while (lp->tx_old != lp->tx_new);	/* Wait for the ring to empty */
-
-		STOP_DEPCA;	/* Temporarily stop the depca.  */
-		depca_init_ring(dev);	/* Initialize the descriptor rings */
+	netif_stop_queue(dev);
+	while (lp->tx_old != lp->tx_new);	/* Wait for the ring to empty */
 
-		if (dev->flags & IFF_PROMISC) {	/* Set promiscuous mode */
-			lp->init_block.mode |= PROM;
-		} else {
-			SetMulticastFilter(dev);
-			lp->init_block.mode &= ~PROM;	/* Unset promiscuous mode */
-		}
+	STOP_DEPCA;	/* Temporarily stop the depca.  */
+	depca_init_ring(dev);	/* Initialize the descriptor rings */
 
-		LoadCSRs(dev);	/* Reload CSR3 */
-		InitRestartDepca(dev);	/* Resume normal operation. */
-		netif_start_queue(dev);	/* Unlock the TX ring */
+	if (dev->flags & IFF_PROMISC) {	/* Set promiscuous mode */
+		lp->init_block.mode |= PROM;
+	} else {
+		SetMulticastFilter(dev);
+		lp->init_block.mode &= ~PROM;	/* Unset promiscuous mode */
 	}
+
+	LoadCSRs(dev);	/* Reload CSR3 */
+	InitRestartDepca(dev);	/* Resume normal operation. */
+	netif_start_queue(dev);	/* Unlock the TX ring */
 }
 
 /*