diff options
| author | Jonathan Liu <net147@gmail.com> | 2017-10-09 22:46:13 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-17 11:42:51 +0200 |
| commit | 6ed05c68cbcae42cd52b8e53b66952bfa9c002ce (patch) | |
| tree | 7d97789b21633155e69e5babc4bc16df3625a1b8 | |
| parent | 445ef61543da3db5b699f87fb0aa4f227165f6ed (diff) | |
| download | linux-6ed05c68cbcae42cd52b8e53b66952bfa9c002ce.tar.bz2 | |
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>
| -rw-r--r-- | drivers/usb/musb/sunxi.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/musb/sunxi.c b/drivers/usb/musb/sunxi.c index c9a09b5bb6e5..dc353e24d53c 100644 --- a/drivers/usb/musb/sunxi.c +++ b/drivers/usb/musb/sunxi.c @@ -297,6 +297,8 @@ static int sunxi_musb_exit(struct musb *musb) if (test_bit(SUNXI_MUSB_FL_HAS_SRAM, &glue->flags)) sunxi_sram_release(musb->controller->parent); + devm_usb_put_phy(glue->dev, glue->xceiv); + return 0; } |