USB: serial: digi_acceleport: add chars_in_buffer locking

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Both the dp_write_urb_in_use flag and dp_out_buf_len counter should be
accessed while holding the driver port lock. Add the missing locking to
chars_in_buffer and clean up the implementation somewhat by using a
common exit path.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>

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Johan Hovold 2021-05-19 11:20:02 +02:00

parent 3aed3af202

commit dcbc0ae4f8

1 changed files with 11 additions and 9 deletions

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drivers/usb/serial/digi_acceleport.c

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