tree 3ec6da8909165463d6f4f81cdb1c505e87823f60
parent 84f57d9e3685500a7447fc09a6891ce218869174
author Heikki Krogerus <heikki.krogerus@linux.intel.com> 1365602304 +0300
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1365711476 -0700

serial: 8250_dma: TX cleanup

Removing one unneeded uart_write_wakeup(). There is no need
to start PIO transfer unless DMA fails, so this also changes
serial8250_tx_dma() to return 0 unless that is the case.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>