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Date: Mon, 09 Apr 2007 20:10:22 -0700 From: divy@...lsio.com To: jeff@...zik.org Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, swise@...ngridcomputing.com Subject: [PATCH 2.6.21 1/3] cxgb3 - avoid deadlock with mac watchdog From: Divy Le Ray <divy@...lsio.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@...lsio.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); - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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