usb: gadget: u_serial: add missing port entry locking

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gserial_alloc_line() misses locking (for a release barrier) while
resetting port entry on TTY allocation failure. Fix this.

Cc: stable@vger.kernel.org
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

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Michał Mirosław 2019-08-10 10:42:48 +02:00 • committed by Felipe Balbi

parent 9ba3aca8fe

commit daf82bd24e

1 changed files with 2 additions and 0 deletions

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drivers/usb/gadget/function/u_serial.c

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