serial: imx: use locking to stop concurrent access of UCR1

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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>

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Jiada Wang 2014-12-09 18:11:23 +09:00 • committed by Greg Kroah-Hartman

parent 55d8693acd

commit 73631813c1

1 changed files with 12 additions and 0 deletions

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drivers/tty/serial/imx.c

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