usbnet: decrease suspend count if returning -EBUSY for runtime suspend
From commit 5eeb3132eb4c5e9ca92e5247fe4575fe9f8c3efe upstream.
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>
Change-Id: I5e1cbd39e4469150de7cc98af9517a4dbdc80780
CRs-Fixed: 404339
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 1867fe2..6de0a77 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1529,6 +1529,7 @@
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 {