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scsi: 3ware: fix return 0 on the error path of probe 

[ Upstream commit 4dc98c1995 ]

tw_probe() returns 0 in case of fail of tw_initialize_device_extension(),
pci_resource_start() or tw_reset_sequence() and releases resources.
twl_probe() returns 0 in case of fail of twl_initialize_device_extension(),
pci_iomap() and twl_reset_sequence().  twa_probe() returns 0 in case of
fail of tw_initialize_device_extension(), ioremap() and
twa_reset_sequence().

The patch adds retval initialization for these cases.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Acked-by: Adam Radford <aradford@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
Anton Vasilyev 2018-07-27 16:51:57 +03:00 committed by Greg Kroah-Hartman
parent 62128a8d84
commit 383195f9fe
3 changed files with 10 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/scsi/3w-9xxx.c
View File

@ -2042,6 +2042,7 @@ static int twa_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
if (twa_initialize_device_extension(tw_dev)) {
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x25, "Failed to initialize device extension");
retval = -ENOMEM;
goto out_free_device_extension;
}
@ -2064,6 +2065,7 @@ static int twa_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
tw_dev->base_addr = ioremap(mem_addr, mem_len);
if (!tw_dev->base_addr) {
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x35, "Failed to ioremap");
retval = -ENOMEM;
goto out_release_mem_region;
}
@ -2071,8 +2073,10 @@ static int twa_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
TW_DISABLE_INTERRUPTS(tw_dev);
/* Initialize the card */
if (twa_reset_sequence(tw_dev, 0))
if (twa_reset_sequence(tw_dev, 0)) {
retval = -ENOMEM;
goto out_iounmap;
}
/* Set host specific parameters */
if ((pdev->device == PCI_DEVICE_ID_3WARE_9650SE) ||

3
drivers/scsi/3w-sas.c
View File

@ -1597,6 +1597,7 @@ static int twl_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
if (twl_initialize_device_extension(tw_dev)) {
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1a, "Failed to initialize device extension");
retval = -ENOMEM;
goto out_free_device_extension;
}
@ -1611,6 +1612,7 @@ static int twl_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
tw_dev->base_addr = pci_iomap(pdev, 1, 0);
if (!tw_dev->base_addr) {
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1c, "Failed to ioremap");
retval = -ENOMEM;
goto out_release_mem_region;
}
@ -1620,6 +1622,7 @@ static int twl_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
/* Initialize the card */
if (twl_reset_sequence(tw_dev, 0)) {
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x1d, "Controller reset failed during probe");
retval = -ENOMEM;
goto out_iounmap;
}

2
drivers/scsi/3w-xxxx.c
View File

@ -2280,6 +2280,7 @@ static int tw_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
if (tw_initialize_device_extension(tw_dev)) {
printk(KERN_WARNING "3w-xxxx: Failed to initialize device extension.");
retval = -ENOMEM;
goto out_free_device_extension;
}
@ -2294,6 +2295,7 @@ static int tw_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
tw_dev->base_addr = pci_resource_start(pdev, 0);
if (!tw_dev->base_addr) {
printk(KERN_WARNING "3w-xxxx: Failed to get io address.");
retval = -ENOMEM;
goto out_release_mem_region;
}