3.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Anton Vasilyev <vasilyev@xxxxxxxxx> [ Upstream commit 4dc98c1995482262e70e83ef029135247fafe0f2 ] 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@xxxxxxxxx> Acked-by: Adam Radford <aradford@xxxxxxxxx> Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/scsi/3w-9xxx.c | 6 +++++- drivers/scsi/3w-sas.c | 3 +++ drivers/scsi/3w-xxxx.c | 2 ++ 3 files changed, 10 insertions(+), 1 deletion(-) --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -2057,6 +2057,7 @@ static int twa_probe(struct pci_dev *pde 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; } @@ -2079,6 +2080,7 @@ static int twa_probe(struct pci_dev *pde 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; } @@ -2086,8 +2088,10 @@ static int twa_probe(struct pci_dev *pde 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) || --- a/drivers/scsi/3w-sas.c +++ b/drivers/scsi/3w-sas.c @@ -1613,6 +1613,7 @@ static int twl_probe(struct pci_dev *pde 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; } @@ -1627,6 +1628,7 @@ static int twl_probe(struct pci_dev *pde 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; } @@ -1636,6 +1638,7 @@ static int twl_probe(struct pci_dev *pde /* 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; } --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -2291,6 +2291,7 @@ static int tw_probe(struct pci_dev *pdev if (tw_initialize_device_extension(tw_dev)) { printk(KERN_WARNING "3w-xxxx: Failed to initialize device extension."); + retval = -ENOMEM; goto out_free_device_extension; } @@ -2305,6 +2306,7 @@ static int tw_probe(struct pci_dev *pdev 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; }