[PATCH] lib/test_hmm: use kvfree() to free kvcalloc() allocations

[Hao Ge]

Coccinelle scripts/coccinelle/api/kfree_mismatch.cocci reports
the following warnings:

  lib/test_hmm.c:1256:15-16: WARNING kvmalloc is used to allocate this memory at line 1191
  lib/test_hmm.c:1257:15-16: WARNING kvmalloc is used to allocate this memory at line 1196

Fix this by replacing kfree() with kvfree() to correctly handle the
vmalloc() fallback path of kvcalloc().

Fixes: 775465fd26a3 ("lib/test_hmm: add zone device private THP test infrastructure")
Signed-off-by: Hao Ge <hao.ge@xxxxxxxxx>
---
 lib/test_hmm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/test_hmm.c b/lib/test_hmm.c
index 213504915737..38996c4baa40 100644
--- a/lib/test_hmm.c
+++ b/lib/test_hmm.c
@@ -1253,8 +1253,8 @@ static int dmirror_migrate_to_device(struct dmirror *dmirror,
 	mmap_read_unlock(mm);
 	mmput(mm);
 free_mem:
-	kfree(src_pfns);
-	kfree(dst_pfns);
+	kvfree(src_pfns);
+	kvfree(dst_pfns);
 	return ret;
 }
 
-- 
2.25.1