linux-kernel - [PATCH net v4] net: ti: icssg-prueth: Add missing icss_iep

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Message-ID: <7a4e5c5b-e397-479b-b1cb-4b50da248f21@siemens.com>
Date:   Fri, 10 Nov 2023 17:13:02 +0100
From:   Jan Kiszka <jan.kiszka@...mens.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        MD Danish Anwar <danishanwar@...com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Lopes Ivo, Diogo Miguel (T CED IFD-PT)" <diogo.ivo@...mens.com>,
        Nishanth Menon <nm@...com>,
        "Su, Bao Cheng (RC-CN DF FA R&D)" <baocheng.su@...mens.com>,
        Wojciech Drewek <wojciech.drewek@...el.com>,
        Roger Quadros <rogerq@...nel.org>
Subject: [PATCH net v4] net: ti: icssg-prueth: Add missing icss_iep_put to
 error path

From: Jan Kiszka <jan.kiszka@...mens.com>

Analogously to prueth_remove, just also taking care for NULL'ing the
iep pointers.

Fixes: 186734c15886 ("net: ti: icssg-prueth: add packet timestamping and ptp support")
Fixes: 443a2367ba3c ("net: ti: icssg-prueth: am65x SR2.0 add 10M full duplex support")
Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@...el.com>
---

Changes in v4:
 - no functional ones
 - added one original author in CC with new address (no address of
   Grygorii available)

Changes in v3:
 - consolidate cleanup logic further [Wojciech]
 - make sure to NULL iep pointers

Changes in v2:
 - add proper tags

This was lost from the TI SDK version while ripping out SR1.0 support - 
which we are currently restoring for upstream.

 drivers/net/ethernet/ti/icssg/icssg_prueth.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.c b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
index 6c4b64227ac8..3abbeba26f1b 100644
--- a/drivers/net/ethernet/ti/icssg/icssg_prueth.c
+++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
@@ -2105,10 +2105,7 @@ static int prueth_probe(struct platform_device *pdev)
 	prueth->iep1 = icss_iep_get_idx(np, 1);
 	if (IS_ERR(prueth->iep1)) {
 		ret = dev_err_probe(dev, PTR_ERR(prueth->iep1), "iep1 get failed\n");
-		icss_iep_put(prueth->iep0);
-		prueth->iep0 = NULL;
-		prueth->iep1 = NULL;
-		goto free_pool;
+		goto put_iep0;
 	}
 
 	if (prueth->pdata.quirk_10m_link_issue) {
@@ -2205,6 +2202,12 @@ static int prueth_probe(struct platform_device *pdev)
 exit_iep:
 	if (prueth->pdata.quirk_10m_link_issue)
 		icss_iep_exit_fw(prueth->iep1);
+	icss_iep_put(prueth->iep1);
+
+put_iep0:
+	icss_iep_put(prueth->iep0);
+	prueth->iep0 = NULL;
+	prueth->iep1 = NULL;
 
 free_pool:
 	gen_pool_free(prueth->sram_pool,
-- 
2.35.3