scsi: 53c700: pass correct "dev" to dma_alloc_attrs()
authorDan Carpenter <dan.carpenter@oracle.com>
Thu, 24 Jan 2019 10:33:27 +0000 (13:33 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 13 Mar 2019 21:02:31 +0000 (14:02 -0700)
[ 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

index 6be77b3..ac79f20 100644 (file)
@@ -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");