linux-stable.git/drivers/usb/typec/altmodes, branch v5.0 Linux kernel stable tree usb: typec: unlock dp->lock on error exit path, and also zero ret if successful 2018-07-06T14:36:19+00:00 Colin Ian King colin.king@canonical.com 2018-07-05T13:36:47+00:00 98a1a0c7a321a46e805df289c7d385a9b1b4c661 One of the error handling paths forgets to unlock dp->lock on the error exit path leading to a potential lock-up. Also the return path for a successful call to the function configuration_store can return an uninitialized error return code if dp->alt->active is false, so ensure ret is zeroed on the successful exit path to avoid garbage being returned. Detected by CoverityScan, CID#1471597 ("Unitialized scalar variable") Fixes: 0e3bb7d6894d ("usb: typec: Add driver for DisplayPort alternate mode") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
One of the error handling paths forgets to unlock dp->lock on the error
exit path leading to a potential lock-up.  Also the return path for a
successful call to the function configuration_store can return an
uninitialized error return code if dp->alt->active is false, so ensure
ret is zeroed on the successful exit path to avoid garbage being returned.

Detected by CoverityScan, CID#1471597 ("Unitialized scalar variable")

Fixes: 0e3bb7d6894d ("usb: typec: Add driver for DisplayPort alternate mode")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: typec: Add driver for DisplayPort alternate mode 2018-07-02T15:42:36+00:00 Heikki Krogerus heikki.krogerus@linux.intel.com 2018-06-27T15:19:51+00:00 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 DisplayPort USB Type-C Alt Mode allows DisplayPort displays and adapters to be attached to the USB Type-C ports on the system. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
DisplayPort USB Type-C Alt Mode allows DisplayPort displays
and adapters to be attached to the USB Type-C ports on the
system.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>