scsi: aic94xx: fix calls to dma_set_mask_and_coherent()

The change to use dma_set_mask_and_coherent() incorrectly made a second
call with the 32 bit DMA mask value when the call with the 64 bit DMA mask
value succeeded.

[mkp: fixed subject]

Fixes: 3a21986f1a59 ("scsi: aic94xx: fully convert to the generic DMA API")
Cc: <[e-mail]>
Signed-off-by: Hannes Reinecke <[e-mail]>
Reviewed-by: Christoph Hellwig <[e-mail]>
Reviewed-by: Ewan D. Milne <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

drivers/scsi/aic94xx/aic94xx_init.c

···
 	if (err)
 		goto Err_remove;
 
-	err = -ENODEV;
-	if (dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(64)) ||
-	    dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32))) {
+	err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(64));
+	if (err)
+		err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32));
+	if (err) {
+		err = -ENODEV;
 		asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
 		goto Err_remove;
 	}