linux-kernel - [PATCH net] qlcnic: fix memory leak in qlcnic_sriov_channel_cfg

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Message-ID: <20250507152102.53783-1-abdun.nihaal@gmail.com>
Date: Wed,  7 May 2025 20:51:00 +0530
From: Abdun Nihaal <abdun.nihaal@...il.com>
To: shshaikh@...vell.com
Cc: Abdun Nihaal <abdun.nihaal@...il.com>,
	manishc@...vell.com,
	GR-Linux-NIC-Dev@...vell.com,
	andrew+netdev@...n.ch,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	rajesh.borundia@...gic.com,
	sucheta.chakraborty@...gic.com,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH net] qlcnic: fix memory leak in qlcnic_sriov_channel_cfg_cmd()

In one of the error paths in qlcnic_sriov_channel_cfg_cmd(), the memory
allocated in qlcnic_sriov_alloc_bc_mbx_args() for mailbox arguments is
not freed. Fix that by jumping to the error path that frees them, by
calling qlcnic_free_mbx_args().

Fixes: f197a7aa6288 ("qlcnic: VF-PF communication channel implementation")
Signed-off-by: Abdun Nihaal <abdun.nihaal@...il.com>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
index 28d24d59efb8..d57b976b9040 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
@@ -1484,8 +1484,11 @@ static int qlcnic_sriov_channel_cfg_cmd(struct qlcnic_adapter *adapter, u8 cmd_o
 	}
 
 	cmd_op = (cmd.rsp.arg[0] & 0xff);
-	if (cmd.rsp.arg[0] >> 25 == 2)
-		return 2;
+	if (cmd.rsp.arg[0] >> 25 == 2) {
+		ret = 2;
+		goto out;
+	}
+
 	if (cmd_op == QLCNIC_BC_CMD_CHANNEL_INIT)
 		set_bit(QLC_BC_VF_STATE, &vf->state);
 	else
-- 
2.47.2