From ab83a38958ae7e419f18fabe9b2954a6087bfe0d Mon Sep 17 00:00:00 2001 From: Ken Kawasaki Date: Sat, 10 Jul 2010 01:18:13 +0000 Subject: [PATCH] axnet_cs: use spin_lock_irqsave in ax_interrupt Use spin_lock_irqsave instead of spin_lock in ax_interrupt because the interrupt handler can also be invoked from ei_watchdog. Signed-off-by: Ken Kawasaki Signed-off-by: David S. Miller --- drivers/net/pcmcia/axnet_cs.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/net/pcmcia/axnet_cs.c b/drivers/net/pcmcia/axnet_cs.c index 5b3dfb4ab279..33525bf2a3d3 100644 --- a/drivers/net/pcmcia/axnet_cs.c +++ b/drivers/net/pcmcia/axnet_cs.c @@ -1168,6 +1168,7 @@ static irqreturn_t ax_interrupt(int irq, void *dev_id) int interrupts, nr_serviced = 0, i; struct ei_device *ei_local; int handled = 0; + unsigned long flags; e8390_base = dev->base_addr; ei_local = netdev_priv(dev); @@ -1176,7 +1177,7 @@ static irqreturn_t ax_interrupt(int irq, void *dev_id) * Protect the irq test too. */ - spin_lock(&ei_local->page_lock); + spin_lock_irqsave(&ei_local->page_lock, flags); if (ei_local->irqlock) { @@ -1188,7 +1189,7 @@ static irqreturn_t ax_interrupt(int irq, void *dev_id) dev->name, inb_p(e8390_base + EN0_ISR), inb_p(e8390_base + EN0_IMR)); #endif - spin_unlock(&ei_local->page_lock); + spin_unlock_irqrestore(&ei_local->page_lock, flags); return IRQ_NONE; } @@ -1261,7 +1262,7 @@ static irqreturn_t ax_interrupt(int irq, void *dev_id) ei_local->irqlock = 0; outb_p(ENISR_ALL, e8390_base + EN0_IMR); - spin_unlock(&ei_local->page_lock); + spin_unlock_irqrestore(&ei_local->page_lock, flags); return IRQ_RETVAL(handled); } -- GitLab