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Commit 9d3bef0b authored by Martin Kepplinger's avatar Martin Kepplinger Committed by Dmitry Torokhov
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Input: pegasus_notetaker - fix usb_autopm calls to be balanced 



We should only "put" the interface if submitting URB or setting tablet mode
in pegasus_open() fails, otherwise leave it to pegasus_close().

Signed-off-by: default avatarMartin Kepplinger <martink@posteo.de>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 168c1398

drivers/input/tablet/pegasus_notetaker.c

+19 −14
Original line number Diff line number Diff line
@@ -209,33 +209,38 @@ static void pegasus_init(struct work_struct *work) 
static int pegasus_open(struct input_dev *dev)

{

	struct pegasus *pegasus = input_get_drvdata(dev);

	int retval;

	int error;



	retval = usb_autopm_get_interface(pegasus->intf);

	if (retval)

		return retval;

	error = usb_autopm_get_interface(pegasus->intf);

	if (error)

		return error;



	pegasus->irq->dev = pegasus->usbdev;

	if (usb_submit_urb(pegasus->irq, GFP_KERNEL))

		retval = -EIO;

	if (usb_submit_urb(pegasus->irq, GFP_KERNEL)) {

		error = -EIO;

		goto err_autopm_put;

	}



	error = pegasus_set_mode(pegasus, PEN_MODE_XY, NOTETAKER_LED_MOUSE);

	if (error)

		goto err_kill_urb;



	retval = pegasus_set_mode(pegasus, PEN_MODE_XY, NOTETAKER_LED_MOUSE);

	return 0;



err_kill_urb:

	usb_kill_urb(pegasus->irq);

	cancel_work_sync(&pegasus->init);

err_autopm_put:

	usb_autopm_put_interface(pegasus->intf);



	return retval;

	return error;

}



static void pegasus_close(struct input_dev *dev)

{

	struct pegasus *pegasus = input_get_drvdata(dev);

	int autopm_error;



	autopm_error = usb_autopm_get_interface(pegasus->intf);

	usb_kill_urb(pegasus->irq);

	cancel_work_sync(&pegasus->init);



	if (!autopm_error)

	usb_autopm_put_interface(pegasus->intf);

}