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usbnet: decrease suspend count if returning -EBUSY for runtime suspend 

This patch decreases dev->suspend_count in the -EBUSY failure path
of usbnet_suspend. Without the change, the later runtime suspend
will do nothing except for increasing dev->suspend_count.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ming Lei 2012-06-19 21:15:52 +00:00 committed by David S. Miller
parent fb13c47b8e
commit 5eeb3132eb
1 changed files with 1 additions and 0 deletions
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1
drivers/net/usb/usbnet.c
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@ -1515,6 +1515,7 @@ int usbnet_suspend (struct usb_interface *intf, pm_message_t message)
spin_lock_irq(&dev->txq.lock);
/* don't autosuspend while transmitting */
if (dev->txq.qlen && PMSG_IS_AUTO(message)) {
dev->suspend_count--;
spin_unlock_irq(&dev->txq.lock);
return -EBUSY;
} else {