From 508a8c9e264e1057f663e578c47c5ffa00adb160 Mon Sep 17 00:00:00 2001 From: Mark Rustad Date: Fri, 6 Jun 2014 01:57:00 +0000 Subject: [PATCH] ixgbe: Fix possible null-dereference in error path In ixgbe_probe, the code at label err_dma can dereference adapter when it has a NULL value. The check is there to avoid disabling a disabled device. When adapter is NULL, treat it as if the device is enabled, because it is enabled in that case. Signed-off-by: Mark Rustad Tested-by: Phil Schmitt Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index f5aa3311ea28..16e8e444c616 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -8477,7 +8477,7 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_select_bars(pdev, IORESOURCE_MEM)); err_pci_reg: err_dma: - if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) + if (!adapter || !test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) pci_disable_device(pdev); return err; } -- GitLab