]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
usb: xhci: Avoid Stop Endpoint retry loop if the endpoint seems Running
authorMichal Pecio <michal.pecio@gmail.com>
Tue, 11 Mar 2025 15:45:51 +0000 (17:45 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 2 May 2025 05:47:03 +0000 (07:47 +0200)
commit9e7bcd1e2b26d7f8815947747564e8639850e24e
treee98c13d19dbedee846e1745189b6920d101f7778
parentd9a60dd67b2bc510d687348056d68001a6356602
usb: xhci: Avoid Stop Endpoint retry loop if the endpoint seems Running

[ Upstream commit 28a76fcc4c85dd39633fb96edb643c91820133e3 ]

Nothing prevents a broken HC from claiming that an endpoint is Running
and repeatedly rejecting Stop Endpoint with Context State Error.

Avoid infinite retries and give back cancelled TDs.

No such cases known so far, but HCs have bugs.

Signed-off-by: Michal Pecio <michal.pecio@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20250311154551.4035726-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/usb/host/xhci-ring.c