scsi: lpfc: 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.  This resulted in NVMe/FC connections failing due to
corrupted data buffers, and various other SCSI/FCP I/O errors.

Fixes: f30e1bf ("scsi: lpfc: use dma_set_mask_and_coherent")
Cc: <stable@vger.kernel.org>
Suggested-by: Don Dutile <ddutile@redhat.com>
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/lpfc/lpfc_init.c

@@ -7361,15 +7361,18 @@ lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
 	unsigned long bar0map_len, bar2map_len;
 	int i, hbq_count;
 	void *ptr;
-	int error = -ENODEV;
+	int error;
 
 	if (!pdev)
-		return error;
+		return -ENODEV;
 
 	/* Set the device DMA mask size */
-	if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
-	    dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
+	error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (error)
+		error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	if (error)
 		return error;
+	error = -ENODEV;
 
 	/* Get the bus address of Bar0 and Bar2 and the number of bytes
 	 * required by each mapping.
@@ -9742,11 +9745,13 @@ lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
 	uint32_t if_type;
 
 	if (!pdev)
-		return error;
+		return -ENODEV;
 
 	/* Set the device DMA mask size */
-	if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
-	    dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
+	error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (error)
+		error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	if (error)
 		return error;
 
 	/*