This is a note to let you know that I've just added the patch titled
HID: usbhid: Fix the check for HID_RESET_PENDING in hid_io_error
to the 4.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hid-usbhid-fix-the-check-for-hid_reset_pending-in-hid_io_error.patch
and it can be found in the queue-4.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 3af4e5a95184d6d3c1c6a065f163faa174a96a1d Mon Sep 17 00:00:00 2001
From: Don Zickus <[email protected]>
Date: Mon, 10 Aug 2015 12:06:53 -0400
Subject: HID: usbhid: Fix the check for HID_RESET_PENDING in hid_io_error
From: Don Zickus <[email protected]>
commit 3af4e5a95184d6d3c1c6a065f163faa174a96a1d upstream.
It was reported that after 10-20 reboots, a usb keyboard plugged
into a docking station would not work unless it was replugged in.
Using usbmon, it turns out the interrupt URBs were streaming with
callback errors of -71 for some reason. The hid-core.c::hid_io_error was
supposed to retry and then reset, but the reset wasn't really happening.
The check for HID_NO_BANDWIDTH was inverted. Fix was simple.
Tested by reporter and locally by me by unplugging a keyboard halfway until I
could recreate a stream of errors but no disconnect.
Signed-off-by: Don Zickus <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/hid/usbhid/hid-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -164,7 +164,7 @@ static void hid_io_error(struct hid_devi
if (time_after(jiffies, usbhid->stop_retry)) {
/* Retries failed, so do a port reset unless we lack bandwidth*/
- if (test_bit(HID_NO_BANDWIDTH, &usbhid->iofl)
+ if (!test_bit(HID_NO_BANDWIDTH, &usbhid->iofl)
&& !test_and_set_bit(HID_RESET_PENDING, &usbhid->iofl)) {
schedule_work(&usbhid->reset_work);
Patches currently in stable-queue which might be from [email protected] are
queue-4.2/hid-usbhid-fix-the-check-for-hid_reset_pending-in-hid_io_error.patch
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