From: Denis Efremov Date: Fri, 20 Jul 2012 21:54:34 +0000 (+0400) Subject: forcedeth: spin_unlock_irq in interrupt handler fix X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=186e868786f97c8026f0a81400b451ace306b3a4;p=openwrt%2Fstaging%2Fblogic.git 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 Signed-off-by: David S. Miller --- 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)) {