diff options
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800pci.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c index da48c8ac27bd..4dc2d0f840d4 100644 --- a/drivers/net/wireless/rt2x00/rt2800pci.c +++ b/drivers/net/wireless/rt2x00/rt2800pci.c @@ -880,8 +880,13 @@ static irqreturn_t rt2800pci_interrupt(int irq, void *dev_instance) rt2x00pci_register_read(rt2x00dev, INT_SOURCE_CSR, ®); rt2x00pci_register_write(rt2x00dev, INT_SOURCE_CSR, reg); + /* + * Some devices can generate interrupts with empty CSR register, we + * "handle" such irq's to prevent interrupt controller treat them as + * spurious interrupts and disable irq line. + */ if (!reg) - return IRQ_NONE; + return IRQ_HANDLED; if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) return IRQ_HANDLED; |