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serial: imx: use locking to stop concurrent access of UCR1
authorJiada Wang <jiada_wang@mentor.com>
Tue, 9 Dec 2014 09:11:23 +0000 (18:11 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 9 Jan 2015 22:23:07 +0000 (14:23 -0800)
Several places are accessing the UCR1 register without locking.
This probably will cause a race issue when another thread
is accessing the same register.
Add locking to preventing concurrent access of the UCR1 register.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/imx.c patch | blob | history

diff --cc drivers/tty/serial/imx.c
Simple merge
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