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net: usb: Fix premature auto suspend on Rx control path

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RMNET QMI driver does not prevent auto suspend while submitting
the URB on rx control path. This causes the usb device to go to
low power mode after receiving QMI notification as the auto suspend
timer does not get reset by the driver while submitting the URB
and it expires.

CRs-Fixed: 372251
Change-Id: Idb5c377c09d39ff53d4fac32599d6515ceb3da51
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
This commit is contained in:
Hemant Kumar
2012-06-15 20:16:55 -07:00
committed by Stephen Boyd
parent d2d1b4766b
commit 8d1efcd1c2
1 changed files with 4 additions and 0 deletions
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4
drivers/net/usb/rmnet_usb_ctrl.c
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@@ -174,6 +174,8 @@ static void notification_available_cb(struct urb *urb)
goto resubmit_int_urb;
}
usb_mark_last_busy(udev);
if (!dev->resp_available) {
dev->resp_available = true;
wake_up(&dev->open_wait_queue);
@@ -261,6 +263,7 @@ static void resp_avail_cb(struct urb *urb)
resubmit_int_urb:
/*re-submit int urb to check response available*/
usb_mark_last_busy(udev);
status = usb_submit_urb(dev->inturb, GFP_ATOMIC);
if (status)
dev_err(dev->devicep, "%s: Error re-submitting Int URB %d\n",
@@ -796,6 +799,7 @@ int rmnet_usb_ctrl_probe(struct usb_interface *intf,
dev->intbuf, wMaxPacketSize,
notification_available_cb, dev, interval);
usb_mark_last_busy(udev);
return rmnet_usb_ctrl_start_rx(dev);
}