forcedeth: spin_unlock_irq in interrupt handler fix

The replacement of spin_lock_irq/spin_unlock_irq pair in interrupt
handler by spin_lock_irqsave/spin_lock_irqrestore pair.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Denis Efremov <yefremov.denis@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index 8b7c5129c7e1..67edc2e15b82 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -3775,7 +3775,7 @@ static irqreturn_t nv_nic_irq_other(int foo, void *data)
                         np->link_timeout = jiffies + LINK_TIMEOUT;
                 }
                 if (events & NVREG_IRQ_RECOVER_ERROR) {
-                        spin_lock_irq(&np->lock);
+                        spin_lock_irqsave(&np->lock, flags);
                         /* disable interrupts on the nic */
                         writel(NVREG_IRQ_OTHER, base + NvRegIrqMask);
                         pci_push(base);
@@ -3785,7 +3785,7 @@ static irqreturn_t nv_nic_irq_other(int foo, void *data)
                                 np->recover_error = 1;
                                 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
                         }
-                        spin_unlock_irq(&np->lock);
+                        spin_unlock_irqrestore(&np->lock, flags);
                         break;
                 }
                 if (unlikely(i > max_interrupt_work)) {