Acked-by: Arunpravin Paneer Selvam <[email protected]>
Regards,
Arun.
On 10/23/2025 12:28 PM, Sunil Khatri wrote:
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 <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c
index d6f903a2d573..6ac206e2bc46 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c
@@ -286,7 +286,11 @@ 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);
+ range->hmm_range.hmm_pfns = NULL;
+ }
+
amdgpu_bo_unref(&range->bo);
kfree(range);
}
