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[PATCH] USB: net2280: check for shared IRQs 

This patch (as670) adds a check for whether a shared IRQ was actually
generated by the net2280 device.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Stern 2006-04-14 16:44:11 -04:00 committed by Greg Kroah-Hartman
parent 317e83b842
commit 658ad5e001
1 changed files with 4 additions and 0 deletions
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4
drivers/usb/gadget/net2280.c
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@ -2742,6 +2742,10 @@ static irqreturn_t net2280_irq (int irq, void *_dev, struct pt_regs * r)
{
struct net2280 *dev = _dev;
/* shared interrupt, not ours */
if (!(readl(&dev->regs->irqstat0) & (1 << INTA_ASSERTED)))
return IRQ_NONE;
spin_lock (&dev->lock);
/* handle disconnect, dma, and more */