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[v3,for-next,03/13] RDMA/core: Use refcount_t instead of atomic_t on refcount of ib_mad_snoop_private

Message ID 1621925504-33019-4-git-send-email-liweihang@huawei.com (mailing list archive)
State Superseded
Headers show
Series RDMA: Use refcount_t for reference counting | expand

Commit Message

Weihang Li May 25, 2021, 6:51 a.m. UTC 
The refcount_t API will WARN on underflow and overflow of a reference
counter, and avoid use-after-free risks.

Signed-off-by: Weihang Li <liweihang@huawei.com>
---
 drivers/infiniband/core/mad_priv.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/infiniband/core/mad_priv.h b/drivers/infiniband/core/mad_priv.h
index 4aa16b3..25e573d 100644
--- a/drivers/infiniband/core/mad_priv.h
+++ b/drivers/infiniband/core/mad_priv.h
@@ -115,7 +115,7 @@  struct ib_mad_snoop_private {
 	struct ib_mad_qp_info *qp_info;
 	int snoop_index;
 	int mad_snoop_flags;
-	atomic_t refcount;
+	refcount_t refcount;
 	struct completion comp;
 };