From: Hannes Reinecke <hare@suse.de>
Date: Mon, 18 Feb 2019 07:34:22 +0000 (+0100)
Subject: scsi: aic94xx: fix calls to dma_set_mask_and_coherent()
X-Git-Tag: v5.0~3^2~5
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=c326de562f1fc149da4855a1b9d0433300c2a85d;p=users%2Fhch%2Fmisc.git

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: <stable@vger.kernel.org>
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/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c
index 07efcb9b5b94..bbdae67774f0 100644
--- a/drivers/scsi/aic94xx/aic94xx_init.c
+++ b/drivers/scsi/aic94xx/aic94xx_init.c
@@ -769,9 +769,11 @@ static int asd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	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;
 	}