scsi: esas2r: use dma_set_mask_and_coherent
The driver currently uses pci_set_dma_mask despite otherwise using the generic DMA API. Also move the dma_get_required_mask check before actually setting the dma mask so that we don't end up with inconsistent settings in corner cases. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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