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authorDave Airlie <airlied@redhat.com>2009-03-28 20:22:18 -0400
committerDave Airlie <airlied@redhat.com>2009-03-28 20:22:18 -0400
commit90f959bcb386da2c71613dcefc6a285e054a539e (patch)
treeee3e9dd4111d4aad12e579cb0c2c159114dff263 /drivers/net/dm9000.c
parent41f13fe81dd1b08723ab9f3fc3c7f29cfa81f1a5 (diff)
parent07d43ba98621f08e252a48c96b258b4d572b0257 (diff)
drm: merge Linux master into HEAD
Conflicts: drivers/gpu/drm/drm_info.c drivers/gpu/drm/drm_proc.c drivers/gpu/drm/i915/i915_gem_debugfs.c
Diffstat (limited to 'drivers/net/dm9000.c')
-rw-r--r--drivers/net/dm9000.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index bcf92917bbf..254ec62b5f5 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -930,13 +930,15 @@ static irqreturn_t dm9000_interrupt(int irq, void *dev_id)
struct net_device *dev = dev_id;
board_info_t *db = netdev_priv(dev);
int int_status;
+ unsigned long flags;
u8 reg_save;
dm9000_dbg(db, 3, "entering %s\n", __func__);
/* A real interrupt coming */
- spin_lock(&db->lock);
+ /* holders of db->lock must always block IRQs */
+ spin_lock_irqsave(&db->lock, flags);
/* Save previous register address */
reg_save = readb(db->io_addr);
@@ -972,7 +974,7 @@ static irqreturn_t dm9000_interrupt(int irq, void *dev_id)
/* Restore previous register address */
writeb(reg_save, db->io_addr);
- spin_unlock(&db->lock);
+ spin_unlock_irqrestore(&db->lock, flags);
return IRQ_HANDLED;
}