media: gspca: sq930x: use GFP_KERNEL in sd_dq_callback()

The context in which sd_dq_callback() is non atomic, there is even
msleep() at the end of the function. There is no need to use GFP_ATOMIC
here - use GFP_KERNEL instead.

Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/usb/gspca/sq930x.c

@@ -1044,7 +1044,7 @@ static void sd_dq_callback(struct gspca_dev *gspca_dev)
 			v4l2_ctrl_g_ctrl(sd->gain));
 
 	gspca_dev->cam.bulk_nurbs = 1;
-	ret = usb_submit_urb(gspca_dev->urb[0], GFP_ATOMIC);
+	ret = usb_submit_urb(gspca_dev->urb[0], GFP_KERNEL);
 	if (ret < 0)
 		pr_err("sd_dq_callback() err %d\n", ret);