diff options
| author |   Hawking Zhang <Hawking.Zhang@amd.com> | 2019-09-03 03:16:47 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-09-13 17:41:29 -0500 |
| commit | d094aea312580f12232b546523dae20f54445469 (patch) | |
| tree | e2e487aebcecea8ce9a085de8738e29e5c154b67 /drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c | |
| parent | dmr/amdgpu: Add system auto reboot to RAS. (diff) | |
| download | linux-dev-d094aea312580f12232b546523dae20f54445469.tar.xz linux-dev-d094aea312580f12232b546523dae20f54445469.zip | |
drm/amdgpu: set ip specific ras interface pointer to NULL after free it
to prevent access to dangling pointers
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c index ab6559a2d5e8..9916a333d9dc 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c @@ -639,8 +639,10 @@ static int mmhub_v1_0_ras_late_init(struct amdgpu_device *adev) mmhub_ih_info.head = mmhub_fs_info.head = *adev->gmc.mmhub_ras_if; r = amdgpu_ras_late_init(adev, adev->gmc.mmhub_ras_if, &mmhub_fs_info, &mmhub_ih_info); - if (r || !amdgpu_ras_is_supported(adev, adev->gmc.mmhub_ras_if->block)) + if (r || !amdgpu_ras_is_supported(adev, adev->gmc.mmhub_ras_if->block)) { kfree(adev->gmc.mmhub_ras_if); + adev->gmc.mmhub_ras_if = NULL; + } return r; } |