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usb: typec: ucsi: Fix command cancellation
There are several reports about (Fedora) 6.3 kernels crashing at boot and that adding module_blacklist=ucsi_acpi to the kernel commandline helps:
- https://discussion.fedoraproject.org/t/fedora-hangs-on-boot-after-upgrading-to-kernel-6-3-4/83605/
- https://bbs.archlinux.org/viewtopic.php?pid=2102715
- https://bugzilla.redhat.com/show_bug.cgi?id=2213179
- https://bugzilla.kernel.org/show_bug.cgi?id=217517
This cherry-picks the fix pending for this upstream, which should get this resolved for Fedora users ASAP:
Upstream commit: c4a8bfabefed706bb9150867db528ceefd5cb5fe
(currrently pending in gregkh/usb/usb-linus)
The Cancel command was passed to the write callback as the
offset instead of as the actual command which caused NULL
pointer dereference.
Reported-by: Stephan Bolten <stephan.bolten@gmx.net>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217517
Fixes: 094902bc6a3c ("usb: typec: ucsi: Always cancel the command if PPM reports BUSY condition")
Cc: stable@vger.kernel.org
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Message-ID: <20230606115802.79339-1-heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>