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| author | Aaron Ma <aaron.ma@canonical.com> | 2018-11-09 18:21:20 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-01 11:37:25 +0300 |
| commit | 60ac01c60ba94d8a17016ede99789207a5b93856 (patch) | |
| tree | 016d7400764f5653b051d9b55f5be89989c4c632 /init/Makefile | |
| parent | 3e8886bd158fc34efad491176b8899417736dc1f (diff) | |
| download | linux-60ac01c60ba94d8a17016ede99789207a5b93856.tar.xz | |
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 'init/Makefile')
0 files changed, 0 insertions, 0 deletions