commit 6ed05c68cbcae42cd52b8e53b66952bfa9c002ce
author Jonathan Liu <net147@gmail.com> Mon Oct 09 22:46:13 2017 -0500
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Tue Oct 17 11:42:51 2017 +0200
tree 7d97789b21633155e69e5babc4bc16df3625a1b8
parent 445ef61543da3db5b699f87fb0aa4f227165f6ed

usb: musb: sunxi: Explicitly release USB PHY on exit

This fixes a kernel oops when unloading the driver due to usb_put_phy
being called after usb_phy_generic_unregister when the device is
detached. Calling usb_phy_generic_unregister causes x->dev->driver to
be NULL in usb_put_phy and results in a NULL pointer dereference.

Cc: stable@vger.kernel.org # v4.3+
Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>