From: divy@chelsio.com
To: jeff@garzik.org
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
swise@opengridcomputing.com
Subject: [PATCH 2.6.21 1/3] cxgb3 - avoid deadlock with mac watchdog
Date: Mon, 09 Apr 2007 20:10:22 -0700 [thread overview]
Message-ID: <20070410031022.12878.81342.stgit@localhost.localdomain> (raw)
From: Divy Le Ray <divy@chelsio.com>
Fix a deadlock when the interface s configured down and
the watchdog tack is sleeping on rtnl_lock.
Signed-off-by: Divy Le Ray <divy@chelsio.com>
---
drivers/net/cxgb3/cxgb3_main.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 26240fd..c6ebe25 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -2119,7 +2119,9 @@ static void check_t3b2_mac(struct adapte
{
int i;
- rtnl_lock(); /* synchronize with ifdown */
+ if (!rtnl_trylock()) /* synchronize with ifdown */
+ return;
+
for_each_port(adapter, i) {
struct net_device *dev = adapter->port[i];
struct port_info *p = netdev_priv(dev);
next reply other threads:[~2007-04-10 3:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-10 3:10 divy [this message]
2007-04-11 15:55 ` [PATCH 2.6.21 1/3] cxgb3 - avoid deadlock with mac watchdog Jeff Garzik
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