[PATCH AUTOSEL 4.19 47/65] scsi: 53c700: pass correct "dev" to dma_alloc_attrs()

Sasha Levin
2019-02-23T21:24:13Z

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 8437fcf14deed67e5ad90b5e8abf62fb20f30881 ]

The "hostdata->dev" pointer is NULL here. We set "hostdata->dev = dev;"
later in the function and we also use "hostdata->dev" when we call
dma_free_attrs() in NCR_700_release().

This bug predates git version control.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/53c700.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index 6be77b3aa8a5f..ac79f2088b316 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -295,7 +295,7 @@ NCR_700_detect(struct scsi_host_template *tpnt,
if(tpnt->sdev_attrs == NULL)
tpnt->sdev_attrs = NCR_700_dev_attrs;

- memory = dma_alloc_attrs(hostdata->dev, TOTAL_MEM_SIZE, &pScript,
+ memory = dma_alloc_attrs(dev, TOTAL_MEM_SIZE, &pScript,
GFP_KERNEL, DMA_ATTR_NON_CONSISTENT);
if(memory == NULL) {
printk(KERN_ERR "53c700: Failed to allocate memory for driver, detaching\n");
--
2.19.1