HID: fix USB HID devices after STD with autosuspend

This patch fixes a bug caused by reset_resume not changing the internal
status flags for a device that is resumed via reset_resume. To do so the
reset handlers, which correctly assume that a device is awake, can no longer
do all the work of reset_resume handling.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Tested-by: Laurent Riffard <laurent.riffard@free.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index d8799a1..d79100a 100644 (file)
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -1330,6 +1330,15 @@ static int hid_post_reset(struct usb_interface *intf)
        return 0;
 }
 
+static int hid_reset_resume(struct usb_interface *intf)
+{
+       struct hid_device *hid = usb_get_intfdata(intf);
+       struct usbhid_device *usbhid = hid->driver_data;
+
+       clear_bit(HID_REPORTED_IDLE, &usbhid->iofl);
+       return hid_post_reset(intf);
+}
+
 int usbhid_get_power(struct hid_device *hid)
 {
        struct usbhid_device *usbhid = hid->driver_data;
@@ -1359,7 +1368,7 @@ static struct usb_driver hid_driver = {
 #ifdef CONFIG_PM
        .suspend =      hid_suspend,
        .resume =       hid_resume,
-       .reset_resume = hid_post_reset,
+       .reset_resume = hid_reset_resume,
 #endif
        .pre_reset =    hid_pre_reset,
        .post_reset =   hid_post_reset,