ata: sata_dwc_460ex: use devm_ioremap

This simplifies error handling and cleanup by using devm to manage
IO mappings.

Tested-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
1 file changed