diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3667-drm-amdgpu-Move-null-pointer-dereference-check.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3667-drm-amdgpu-Move-null-pointer-dereference-check.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3667-drm-amdgpu-Move-null-pointer-dereference-check.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3667-drm-amdgpu-Move-null-pointer-dereference-check.patch new file mode 100644 index 00000000..3264df52 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3667-drm-amdgpu-Move-null-pointer-dereference-check.patch @@ -0,0 +1,44 @@ +From a1e43d7e52117904661ac7b0875b7a7279f6176c Mon Sep 17 00:00:00 2001 +From: Austin Kim <austindh.kim@gmail.com> +Date: Fri, 30 Aug 2019 17:07:04 +0900 +Subject: [PATCH 3667/4256] drm/amdgpu: Move null pointer dereference check + +Null pointer dereference check should have been checked, +ahead of below routine. + struct amdgpu_device *adev = hwmgr->adev; + +With this commit, it could avoid potential NULL dereference. + +Signed-off-by: Austin Kim <austindh.kim@gmail.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/powerplay/smumgr/smu8_smumgr.c | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smu8_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/smu8_smumgr.c +index 8189fe402c6d..4728aa23a818 100644 +--- a/drivers/gpu/drm/amd/powerplay/smumgr/smu8_smumgr.c ++++ b/drivers/gpu/drm/amd/powerplay/smumgr/smu8_smumgr.c +@@ -722,16 +722,17 @@ static int smu8_request_smu_load_fw(struct pp_hwmgr *hwmgr) + + static int smu8_start_smu(struct pp_hwmgr *hwmgr) + { +- struct amdgpu_device *adev = hwmgr->adev; ++ struct amdgpu_device *adev; + + uint32_t index = SMN_MP1_SRAM_START_ADDR + + SMU8_FIRMWARE_HEADER_LOCATION + + offsetof(struct SMU8_Firmware_Header, Version); + +- + if (hwmgr == NULL || hwmgr->device == NULL) + return -EINVAL; + ++ adev = hwmgr->adev; ++ + cgs_write_register(hwmgr->device, mmMP0PUB_IND_INDEX, index); + hwmgr->smu_version = cgs_read_register(hwmgr->device, mmMP0PUB_IND_DATA); + pr_info("smu version %02d.%02d.%02d\n", +-- +2.17.1 + |