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>

1 files changed, 10 insertions, 1 deletions

diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index d8799a18a422..d79100a01b05 100644
--- 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,