diff options
| author | Sunil Khatri <sunil.khatri@amd.com> | 2025-10-21 15:14:06 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-10-28 09:54:46 -0400 |
| commit | 84564d2920b8c858d96cb7471b45203d35f63b61 (patch) | |
| tree | c6d4da179b10add3c6b12a23dfc12ee02c997f1f | |
| parent | 6f1ee58a5e56c4a7b5b3fe9323e4510df156449c (diff) | |
drm/amdgpu: null check for hmm_pfns ptr before freeing it
Due to low memory or when num of pages is too big to be
accomodated, allocation could fail for pfn's.
Chekc hmm_pfns for NULL before calling the kvfree for the it.
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Acked-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c index d6f903a2d573..7e5a09b0bc78 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c @@ -286,7 +286,9 @@ void amdgpu_hmm_range_free(struct amdgpu_hmm_range *range) if (!range) return; - kvfree(range->hmm_range.hmm_pfns); + if (range->hmm_range.hmm_pfns) + kvfree(range->hmm_range.hmm_pfns); + amdgpu_bo_unref(&range->bo); kfree(range); } |