USB: serial: mos7840: fix remote wakeup
commitef50d287de8e73e7e60206920458865c8174df4e
authorJohan Hovold <johan@kernel.org>
Thu, 7 Nov 2019 13:21:19 +0000 (7 14:21 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Nov 2019 09:10:27 +0000 (29 10:10 +0100)
tree3d781344d7d943ee700eccb2d22034c0d74ed20a
parentc380833817e911c1404e80ddca99162a23d36c3c
USB: serial: mos7840: fix remote wakeup

commit 92fe35fb9c70a00d8fbbf5bd6172c921dd9c7815 upstream.

The driver was setting the device remote-wakeup feature during probe in
violation of the USB specification (which says it should only be set
just prior to suspending the device). This could potentially waste
power during suspend as well as lead to spurious wakeups.

Note that USB core would clear the remote-wakeup feature at first
resume.

Fixes: 3f5429746d91 ("USB: Moschip 7840 USB-Serial Driver")
Cc: stable <stable@vger.kernel.org> # 2.6.19
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/serial/mos7840.c