From: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
Date: Sun, 10 Aug 2025 17:51:58 +0000 (+0530)
Subject: RDMA/core: Free pfn_list with appropriate kvfree call
X-Git-Tag: v6.17-rc3~19^2~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=111aea0464c20f3eb25a48d5ff6c036e6b416123;p=thirdparty%2Fkernel%2Fstable.git

RDMA/core: Free pfn_list with appropriate kvfree call

Ensure that pfn_list allocated by kvcalloc() is freed using corresponding
kvfree() function. Match memory allocation and free routines kvcalloc -> kvfree.

Fixes: 259e9bd07c57 ("RDMA/core: Avoid hmm_dma_map_alloc() for virtual DMA devices")
Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
Link: https://patch.msgid.link/aJjcPjL1BVh8QrMN@bhairav-test.ee.iitb.ac.in
Signed-off-by: Leon Romanovsky <leon@kernel.org>
---

diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c
index b1c44ec1a3f36..572a91a62a7be 100644
--- a/drivers/infiniband/core/umem_odp.c
+++ b/drivers/infiniband/core/umem_odp.c
@@ -115,7 +115,7 @@ static int ib_init_umem_odp(struct ib_umem_odp *umem_odp,
 
 out_free_map:
 	if (ib_uses_virt_dma(dev))
-		kfree(map->pfn_list);
+		kvfree(map->pfn_list);
 	else
 		hmm_dma_map_free(dev->dma_device, map);
 	return ret;
@@ -287,7 +287,7 @@ static void ib_umem_odp_free(struct ib_umem_odp *umem_odp)
 	mutex_unlock(&umem_odp->umem_mutex);
 	mmu_interval_notifier_remove(&umem_odp->notifier);
 	if (ib_uses_virt_dma(dev))
-		kfree(umem_odp->map.pfn_list);
+		kvfree(umem_odp->map.pfn_list);
 	else
 		hmm_dma_map_free(dev->dma_device, &umem_odp->map);
 }