diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-03-26 15:45:22 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-26 15:45:22 +0100 |
| commit | a5ebc0b1a7843508b375f7ab8a36a628e5c9f372 (patch) | |
| tree | 04d3ab410e08b4d9174c663dd6bf95611dd16d0a /drivers/net/dm9000.c | |
| parent | 5ba1ae92b6796b3367152ccd9baa022dde7eed4c (diff) | |
| parent | 8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff) | |
Merge commit 'v2.6.29' into timers/core
Diffstat (limited to 'drivers/net/dm9000.c')
| -rw-r--r-- | drivers/net/dm9000.c | 6 |
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; } |