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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.patch44
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
+