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serial: mrst_max3110: some code cleanup
authorFeng Tang <feng.tang@intel.com>
Mon, 13 Sep 2010 07:39:48 +0000 (15:39 +0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 22 Oct 2010 17:20:03 +0000 (10:20 -0700)
The cleanup for mrst_max3110 includes:
* remove unneeded head files
* make the spi_transfer dma safe, so that driver is more portable
* add more check for error return value
* use mutex_trylock for read thread

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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