From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Wed, 10 Apr 2013 13:58:24 +0000 (+0300)
Subject: serial: 8250_dma: TX cleanup
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~136^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ea5b24da80322b8136cb000a7340cdc29a3d6dc;p=pandora-kernel.git

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>
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