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authorJesse Brandeburg <jesse.brandeburg@intel.com>2009-01-27 16:41:58 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2009-02-12 09:31:00 -0800
commitc6ac5fe00250faed88fb258d7ec91ec99bbe1e95 (patch)
tree74150f582382a3a204ef693b6db213c06cceeab3 /drivers/net
parent297c65a6bff93f734511abc154c968aa85f889bf (diff)
e1000: fix bug with shared interrupt during reset
commit 15b2bee22a0390d951301b53e83df88d0350c499 upstream. A nasty bug was found where an MTU change (or anything else that caused a reset) could race with the interrupt code. The interrupt code was entered by a shared interrupt during the MTU change. This change prevents the interrupt code from running while the driver is in the middle of its reset path. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/e1000/e1000_main.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 872ea5805834..798e2b2bdf13 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -31,7 +31,7 @@
char e1000_driver_name[] = "e1000";
static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
-#define DRV_VERSION "7.3.20-k3-NAPI"
+#define DRV_VERSION "7.3.21-k3-NAPI"
const char e1000_driver_version[] = DRV_VERSION;
static const char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation.";
@@ -3835,7 +3835,7 @@ static irqreturn_t e1000_intr(int irq, void *data)
struct e1000_hw *hw = &adapter->hw;
u32 rctl, icr = er32(ICR);
- if (unlikely(!icr))
+ if (unlikely((!icr) || test_bit(__E1000_RESETTING, &adapter->flags)))
return IRQ_NONE; /* Not our interrupt */
/* IMS will not auto-mask if INT_ASSERTED is not set, and if it is