tree 7d0f1387ed4c14229923b1c8b8239032dcc00173
parent 6a20dbd6caa2358716136144bf524331d70b1e03
author Loic Poulain <loic.poulain@intel.com> 1398332336 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1398377882 -0700

8250_core: Fix unwanted TX chars write

On transmit-hold-register empty, serial8250_tx_chars
should be called only if we don't use DMA.
DMA has its own tx cycle.

Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>