scsi: bfa: 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 commit message]

Fixes: a69b080025ea ("scsi: bfa: use dma_set_mask_and_coherent")
Cc: <stable@vger.kernel.org>
Suggested-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>

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index 42a0caf..88880a6 100644 (file)
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -727,7 +727,7 @@ bfad_init_timer(struct bfad_s *bfad)
 int
 bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
 {
-       int             rc = -ENODEV;
+       int rc = -ENODEV;
 
        if (pci_enable_device(pdev)) {
                printk(KERN_ERR "pci_enable_device fail %p\n", pdev);
@@ -739,8 +739,12 @@ bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
 
        pci_set_master(pdev);
 
-       if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
-           dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) {
+       rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+       if (rc)
+               rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+
+       if (rc) {
+               rc = -ENODEV;
                printk(KERN_ERR "dma_set_mask_and_coherent fail %p\n", pdev);
                goto out_release_region;
        }
@@ -1534,6 +1538,7 @@ bfad_pci_slot_reset(struct pci_dev *pdev)
 {
        struct bfad_s *bfad = pci_get_drvdata(pdev);
        u8 byte;
+       int rc;
 
        dev_printk(KERN_ERR, &pdev->dev,
                   "bfad_pci_slot_reset flags: 0x%x\n", bfad->bfad_flags);
@@ -1561,8 +1566,11 @@ bfad_pci_slot_reset(struct pci_dev *pdev)
        pci_save_state(pdev);
        pci_set_master(pdev);
 
-       if (dma_set_mask_and_coherent(&bfad->pcidev->dev, DMA_BIT_MASK(64)) ||
-           dma_set_mask_and_coherent(&bfad->pcidev->dev, DMA_BIT_MASK(32)))
+       rc = dma_set_mask_and_coherent(&bfad->pcidev->dev, DMA_BIT_MASK(64));
+       if (rc)
+               rc = dma_set_mask_and_coherent(&bfad->pcidev->dev,
+                                              DMA_BIT_MASK(32));
+       if (rc)
                goto out_disable_device;
 
        if (restart_bfa(bfad) == -1)