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authorLeon Romanovsky <leonro@mellanox.com>2019-06-16 15:05:20 +0300
committerDoug Ledford <dledford@redhat.com>2019-06-20 15:17:59 -0400
commit836a0fbb3e76f704ad65ddfb57f00725245e509b (patch)
tree30d961b48c7029a952e6eeb5077d76ce0e4a5221 /drivers/infiniband/sw/rxe
parentRDMA/hns: reset function when removing module (diff)
downloadlinux-dev-836a0fbb3e76f704ad65ddfb57f00725245e509b.tar.xz
linux-dev-836a0fbb3e76f704ad65ddfb57f00725245e509b.zip
RDMA: Check umem pointer validity prior to release
Update ib_umem_release() to behave similarly to kfree() and allow submitting NULL pointer as safe input to this function. Fixes: a52c8e2469c3 ("RDMA: Clean destroy CQ in drivers do not return errors") Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/sw/rxe')
-rw-r--r--drivers/infiniband/sw/rxe/rxe_mr.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_mr.c b/drivers/infiniband/sw/rxe/rxe_mr.c
index f501f72489d8..ea6a819b7167 100644
--- a/drivers/infiniband/sw/rxe/rxe_mr.c
+++ b/drivers/infiniband/sw/rxe/rxe_mr.c
@@ -96,8 +96,7 @@ void rxe_mem_cleanup(struct rxe_pool_entry *arg)
struct rxe_mem *mem = container_of(arg, typeof(*mem), pelem);
int i;
- if (mem->umem)
- ib_umem_release(mem->umem);
+ ib_umem_release(mem->umem);
if (mem->map) {
for (i = 0; i < mem->num_map; i++)