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.
Fixes: c22b332d811b ("scsi: csiostor: switch to generic DMA API")
Cc: <stable(a)vger.kernel.org>
Signed-off-by: Hannes Reinecke <hare(a)suse.com>
---
drivers/scsi/csiostor/csio_init.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/csiostor/csio_init.c b/drivers/scsi/csiostor/csio_init.c
index 460e4ee1c8fe..a6dd704d7f2d 100644
--- a/drivers/scsi/csiostor/csio_init.c
+++ b/drivers/scsi/csiostor/csio_init.c
@@ -206,8 +206,11 @@ csio_pci_init(struct pci_dev *pdev, int *bars)
pci_set_master(pdev);
pci_try_set_mwi(pdev);
- if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
- dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) {
+ rv = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+ if (rv)
+ rv = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ if (rv) {
+ rv = -ENODEV;
dev_err(&pdev->dev, "No suitable DMA available.\n");
goto err_release_regions;
}
--
2.16.4
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: f30e1bfd6154 ("scsi: lpfc: use dma_set_mask_and_coherent")
Cc: <stable(a)vger.kernel.org>
Suggested-by: Don Dutile <ddutile(a)redhat.com>
Signed-off-by: Ewan D. Milne <emilne(a)redhat.com>
Signed-off-by: Hannes Reinecke <hare(a)suse.com>
---
drivers/scsi/lpfc/lpfc_init.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index eef6b929c327..59b098cb5787 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -7693,15 +7693,18 @@ 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.
@@ -10053,11 +10056,13 @@ 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;
/*
--
2.16.4