tree 5d814cd687776374f960d3af2490187c3fbdf750
parent e5b57c037a656c694c7f3674f96352297a6ee7d8
author Huang Shijie <shijie8@gmail.com> 1345688016 -0400
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1346876915 -0700

serial: add a new helper function

In most of the time, the driver needs to check if the cts flow control
is enabled. But now, the driver checks the ASYNC_CTS_FLOW flag manually,
which is not a grace way. So add a new wraper function to make the code
tidy and clean.

Signed-off-by: Huang Shijie <shijie8@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>