netdev - [PATCH] octeontx2-pf: unlock on error path in otx2_config_pause

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Date:   Thu, 12 Mar 2020 14:30:48 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Sunil Goutham <sgoutham@...vell.com>,
        Geetha sowjanya <gakula@...vell.com>
Cc:     Subbaraya Sundeep <sbhatta@...vell.com>,
        hariprasad <hkelam@...vell.com>,
        "David S. Miller" <davem@...emloft.net>,
        Andrew Lunn <andrew@...n.ch>, netdev@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] octeontx2-pf: unlock on error path in otx2_config_pause_frm()

We need to unlock before returning if this allocation fails.

Fixes: 75f36270990c ("octeontx2-pf: Support to enable/disable pause frames via ethtool")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
---
 drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
index af4437d4dfcb..157735443473 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
@@ -227,14 +227,17 @@ int otx2_config_pause_frm(struct otx2_nic *pfvf)
 
 	otx2_mbox_lock(&pfvf->mbox);
 	req = otx2_mbox_alloc_msg_cgx_cfg_pause_frm(&pfvf->mbox);
-	if (!req)
-		return -ENOMEM;
+	if (!req) {
+		err = -ENOMEM;
+		goto unlock;
+	}
 
 	req->rx_pause = !!(pfvf->flags & OTX2_FLAG_RX_PAUSE_ENABLED);
 	req->tx_pause = !!(pfvf->flags & OTX2_FLAG_TX_PAUSE_ENABLED);
 	req->set = 1;
 
 	err = otx2_sync_mbox_msg(&pfvf->mbox);
+unlock:
 	otx2_mbox_unlock(&pfvf->mbox);
 	return err;
 }
-- 
2.20.1