linux-kernel - [PATCH rdma-rc] RDMA/bnxt_re: Fix a potential memory leak in destroy_gsi

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Message-ID: <20250919054238.5374-1-dyl_wlc@163.com>
Date: Fri, 19 Sep 2025 13:42:38 +0800
From: YanLong Dai <dyl_wlc@....com>
To: kalesh-anakkur.purayil@...adcom.com
Cc: jgg@...pe.ca,
	leon@...nel.org,
	linux-kernel@...r.kernel.org,
	linux-rdma@...r.kernel.org,
	selvin.xavier@...adcom.com,
	daiyanlong@...inos.cn,
	dyl_wlc@....com
Subject: [PATCH rdma-rc] RDMA/bnxt_re: Fix a potential memory leak in destroy_gsi_sqp

From: daiyanlong <daiyanlong@...inos.cn>

The current error handling path in bnxt_re_destroy_gsi_sqp() could lead
to a resource leak. When bnxt_qplib_destroy_qp() fails, the function
jumps to the 'fail' label and returns immediately, skipping the call
to bnxt_qplib_free_qp_res().

Continue the resource teardown even if bnxt_qplib_destroy_qp() fails,
which aligns with the driver's general error handling strategy and
prevents the potential leak.

Fixes: 8dae419f9ec73 ("RDMA/bnxt_re: Refactor queue pair creation code")

Signed-off-by: daiyanlong <daiyanlong@...inos.cn>
---
 drivers/infiniband/hw/bnxt_re/ib_verbs.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 260dc67b8b87..15d3f5d5c0ee 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -931,10 +931,9 @@ static int bnxt_re_destroy_gsi_sqp(struct bnxt_re_qp *qp)
 
 	ibdev_dbg(&rdev->ibdev, "Destroy the shadow QP\n");
 	rc = bnxt_qplib_destroy_qp(&rdev->qplib_res, &gsi_sqp->qplib_qp);
-	if (rc) {
+	if (rc)
 		ibdev_err(&rdev->ibdev, "Destroy Shadow QP failed");
-		goto fail;
-	}
+
 	bnxt_qplib_free_qp_res(&rdev->qplib_res, &gsi_sqp->qplib_qp);
 
 	/* remove from active qp list */
@@ -951,8 +950,6 @@ static int bnxt_re_destroy_gsi_sqp(struct bnxt_re_qp *qp)
 	rdev->gsi_ctx.sqp_tbl = NULL;
 
 	return 0;
-fail:
-	return rc;
 }
 
 /* Queue Pairs */
-- 
2.43.0