From: Jeff Mahoney Date: Sat, 3 Jun 2017 22:01:17 +0000 (-0400) Subject: ixgbe: pci_set_drvdata must be called before register_netdev X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a09c0fc3f5d775231f1884e0e66c495065a461ee;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git ixgbe: pci_set_drvdata must be called before register_netdev We call pci_set_drvdata immediately after calling register_netdev, which leaves a window where tasks writing to the sriov_numvfs sysfs attribute can sneak in and crash the kernel. register_netdev cleans up after itself so placing pci_set_drvdata immediately before it should preserve the intent of commit 0fb6a55cc31f ("ixgbe: fix crash on rmmod after probe fail"). Fixes: 0fb6a55cc31f ("ixgbe: fix crash on rmmod after probe fail") Signed-off-by: Jeff Mahoney Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index c17c8317e001..f3dc5dea9300 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -10372,11 +10372,11 @@ skip_sriov: "hardware.\n"); } strcpy(netdev->name, "eth%d"); + pci_set_drvdata(pdev, adapter); err = register_netdev(netdev); if (err) goto err_register; - pci_set_drvdata(pdev, adapter); /* power down the optics for 82599 SFP+ fiber */ if (hw->mac.ops.disable_tx_laser)