netdev - [PATCH] myri10ge: disable NAPI on failure to setup the interface

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Date:	Mon, 20 Oct 2008 13:54:12 +0200
From:	Brice Goglin <brice@...i.com>
To:	Jeff Garzik <jgarzik@...hat.com>
CC:	netdev@...r.kernel.org
Subject: [PATCH] myri10ge: disable NAPI on failure to setup the interface

Disable NAPI if a failure occurs when setting up the interface. Leaving
it enabled could cause a BUG the next time an ifconfig up is issued.

Signed-off-by: Brice Goglin <brice@...i.com>

--- linux-2.6/drivers/net/myri10ge/myri10ge.c	2008-10-20 08:36:48.000000000 +0200
+++ linux-tmp/drivers/net/myri10ge/myri10ge.c	2008-10-20 13:47:21.000000000 +0200
@@ -75,7 +75,7 @@
 #include "myri10ge_mcp.h"
 #include "myri10ge_mcp_gen_header.h"
 
-#define MYRI10GE_VERSION_STR "1.4.3-1.369"
+#define MYRI10GE_VERSION_STR "1.4.3-1.371"
 
 MODULE_DESCRIPTION("Myricom 10G driver (10GbE)");
 MODULE_AUTHOR("Maintainer: help@...i.com");
@@ -2497,6 +2497,10 @@ static int myri10ge_open(struct net_devi
 	return 0;
 
 abort_with_rings:
+	while (slice) {
+		slice--;
+		napi_disable(&mgp->ss[slice].napi);
+	}
 	for (i = 0; i < mgp->num_slices; i++)
 		myri10ge_free_rings(&mgp->ss[i]);
 


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