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drm/amdgpu: Add recovery_lock to save bad pages function

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Fix race condition failure during UMC UE injection.

Signed-off-by: Candice Li <candice.li@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Candice Li 2021-11-16 14:13:11 +08:00 committed by Alex Deucher
parent 3ebd8bf023
commit d9a69fe512
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
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@ -1935,9 +1935,11 @@ int amdgpu_ras_save_bad_pages(struct amdgpu_device *adev)
if (!con || !con->eh_data)
return 0;
mutex_lock(&con->recovery_lock);
control = &con->eeprom_control;
data = con->eh_data;
save_count = data->count - control->ras_num_recs;
mutex_unlock(&con->recovery_lock);
/* only new entries are saved */
if (save_count > 0) {
if (amdgpu_ras_eeprom_append(control,