From 92f7ccf3b892715cdf6b2241d4defe0536115702 Mon Sep 17 00:00:00 2001 From: Felix Kuehling Date: Tue, 20 Nov 2018 20:52:37 -0500 Subject: [PATCH 2725/2940] drm/amdkfd: Add NULL-pointer check top_dev->gpu is NULL for CPUs. Avoid dereferencing it if NULL. Acked-by: Alex Deucher Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c index aa793fcbbdcc..c5ed21ef2462 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c @@ -101,7 +101,7 @@ struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev) down_read(&topology_lock); list_for_each_entry(top_dev, &topology_device_list, list) - if (top_dev->gpu->pdev == pdev) { + if (top_dev->gpu && top_dev->gpu->pdev == pdev) { device = top_dev->gpu; break; } -- 2.17.1