HID IR device will not response to any command send from host when it is finishing paring and tring to reset itself.
During this period of time, usb_cleaer_halt will be fail and if hid_start_in soon again, we has the possibility trap in infinite loop.
Signed-off-by: CheChun Kuo <vichy.kuo@xxxxxxxxx>
---
drivers/hid/usbhid/hid-core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 79cf503..256b102 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -122,7 +122,8 @@ static void hid_reset(struct work_struct *work)
dev_dbg(&usbhid->intf->dev, "clear halt\n");
rc = usb_clear_halt(hid_to_usb_dev(hid), usbhid->urbin->pipe);
clear_bit(HID_CLEAR_HALT, &usbhid->iofl);
- hid_start_in(hid);
+ if (rc == 0)
+ hid_start_in(hid);
}
else if (test_bit(HID_RESET_PENDING, &usbhid->iofl)) {
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
