serial: 8250: Prevent concurrent updates to shadow registers

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The port shadow registers, ->fcr and ->mcr, must be protected from
concurrent updates. Relocate the shadow register updates in
serial8250_do_set_termios() to the port lock critical section.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Peter Hurley 2015-01-22 12:24:31 -05:00 • committed by Greg Kroah-Hartman

parent 4516d50aab

commit e9cef8625e

1 changed files with 9 additions and 9 deletions

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drivers/tty/serial/8250/8250_core.c

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