serial: 8250_dma: TX optimisation

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Remove one useless wakeup, and do not use DMA with zero byte
transfers.

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

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Heikki Krogerus 2013-01-16 14:08:14 +02:00 • committed by Greg Kroah-Hartman

parent 6f3fe3b102

commit a3b0397fdf

1 changed files with 3 additions and 3 deletions

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drivers/tty/serial/8250/8250_dma.c

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