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drm/amdgpu: Fix the null pointer dereference to ras_manager

Browse source 
Check ras_manager before using it

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ma Jun 2024-05-11 15:48:02 +08:00 committed by Alex Deucher
parent 599142f948
commit 4c11d30c95
1 changed files with 5 additions and 2 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
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@ -2172,12 +2172,15 @@ static void amdgpu_ras_interrupt_process_handler(struct work_struct *work)
int amdgpu_ras_interrupt_dispatch(struct amdgpu_device *adev,
struct ras_dispatch_if *info)
{
struct ras_manager *obj = amdgpu_ras_find_obj(adev, &info->head);
struct ras_ih_data *data = &obj->ih_data;
struct ras_manager *obj;
struct ras_ih_data *data;
obj = amdgpu_ras_find_obj(adev, &info->head);
if (!obj)
return -EINVAL;
data = &obj->ih_data;
if (data->inuse == 0)
return 0;