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(parent: 4c0b92e) | patch
tty: xuartps: Acquire port lock for shutdown
authorSoren Brinkmann <soren.brinkmann@xilinx.com>
Sat, 26 Dec 2015 10:43:55 +0000 (02:43 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 7 Feb 2016 06:52:09 +0000 (22:52 -0800)
commita19eda0f49e5b19c403c5fe33e1e2f46e7b02082
treed664caaeec7ddaf535588f5d2cbab745bb466d5dtree | snapshot (tar.gz zip)
parent4c0b92ed9ebab389cdefd56efe81f8c3d8d458d5commit | diff
tty: xuartps: Acquire port lock for shutdown

Shutting down the UART port can happen while console operations are in
progress. Holding the port lock serializes these operations and avoids
the UART HW to be disabled in the middle of console prints.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/xilinx_uartps.c diff | blob | blame | history