usb: host: xhci: Fix possible wild pointer when handling abort command

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commit 2a7cfdf37b upstream.

When current command was supposed to be aborted, host will free the command
in handle_cmd_completion() function. But it might be still referenced by
xhci->current_cmd, which need to set NULL.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Baolin Wang 2017-01-03 18:28:47 +02:00 • committed by Greg Kroah-Hartman

parent a2118d0974

commit 78ccc1966c

1 changed files with 4 additions and 1 deletions

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drivers/usb/host/xhci-ring.c

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