diff options
| author | Aaron Ma <aaron.ma@canonical.com> | 2018-11-09 17:21:20 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-01 09:46:41 +0100 |
| commit | ae52c0d8586fc47a927c1e20a2abfb5afacd5553 (patch) | |
| tree | 45cf8d1e30f2d7381b989deb27c90c8dbe3ac548 /scripts/gcc-wrapper.py | |
| parent | 2b7e9180b4017a28867f27786266cbd4e4a7cf8b (diff) | |
usb: xhci: fix uninitialized completion when USB3 port got wrong status
commit 958c0bd86075d4ef1c936998deefe1947e539240 upstream.
Realtek USB3.0 Card Reader [0bda:0328] reports wrong port status on
Cannon lake PCH USB3.1 xHCI [8086:a36d] after resume from S3,
after clear port reset it works fine.
Since this device is registered on USB3 roothub at boot,
when port status reports not superspeed, xhci_get_port_status will call
an uninitialized completion in bus_state[0].
Kernel will hang because of NULL pointer.
Restrict the USB2 resume status check in USB2 roothub to fix hang issue.
Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/gcc-wrapper.py')
0 files changed, 0 insertions, 0 deletions