From: Saravanan Vajravel <saravanan.vajravel@broadcom.com>
Date: Sat, 1 Apr 2023 06:34:24 +0000 (-0700)
Subject: RDMA/core: Fix GID entry ref leak when create_ah fails
X-Git-Tag: v6.6-pxa1908~1508^2
X-Git-Url: https://git.dujemihanovic.xyz/?a=commitdiff_plain;h=aca3b0fa3d04b40c96934d86cc224cccfa7ea8e0;p=linux.git

RDMA/core: Fix GID entry ref leak when create_ah fails

If AH create request fails, release sgid_attr to avoid GID entry
referrence leak reported while releasing GID table

Fixes: 1a1f460ff151 ("RDMA: Hold the sgid_attr inside the struct ib_ah/qp")
Link: https://lore.kernel.org/r/20230401063424.342204-1-saravanan.vajravel@broadcom.com
Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Saravanan Vajravel <saravanan.vajravel@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---

diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 11b1c1603aeb..b99b3cc283b6 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -532,6 +532,8 @@ static struct ib_ah *_rdma_create_ah(struct ib_pd *pd,
 	else
 		ret = device->ops.create_ah(ah, &init_attr, NULL);
 	if (ret) {
+		if (ah->sgid_attr)
+			rdma_put_gid_attr(ah->sgid_attr);
 		kfree(ah);
 		return ERR_PTR(ret);
 	}