diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 4ff88a683f61..e332aee386f6 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -3478,9 +3478,17 @@ static irqreturn_t e1000_intr(int irq, void *data) struct e1000_hw *hw = &adapter->hw; u32 icr = er32(ICR); - if (unlikely((!icr) || test_bit(__E1000_DOWN, &adapter->flags))) + if (unlikely((!icr))) return IRQ_NONE; /* Not our interrupt */ + /* + * we might have caused the interrupt, but the above + * read cleared it, and just in case the driver is + * down there is nothing to do so return handled + */ + if (unlikely(test_bit(__E1000_DOWN, &adapter->flags))) + return IRQ_HANDLED; + if (unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) { hw->get_link_status = 1; /* guard against interrupt when we're going down */ |