From: Herve Codina <herve.codina@bootlin.com>
To: Herve Codina <herve.codina@bootlin.com>,
Horatiu Vultur <horatiu.vultur@microchip.com>,
UNGLinuxDriver@microchip.com,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Andrew Lunn <andrew@lunn.ch>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Allan Nielsen <allan.nielsen@microchip.com>,
Steen Hegelund <steen.hegelund@microchip.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
stable@vger.kernel.org
Subject: [PATCH net v2] net: lan966x: remove debugfs directory in probe() error path
Date: Mon, 13 May 2024 13:18:53 +0200 [thread overview]
Message-ID: <20240513111853.58668-1-herve.codina@bootlin.com> (raw)
A debugfs directory entry is create early during probe(). This entry is
not removed on error path leading to some "already present" issues in
case of EPROBE_DEFER.
Create this entry later in the probe() code to avoid the need to change
many 'return' in 'goto' and add the removal in the already present error
path.
Fixes: 942814840127 ("net: lan966x: Add VCAP debugFS support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
---
drivers/net/ethernet/microchip/lan966x/lan966x_main.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
index 2635ef8958c8..61d88207eed4 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
@@ -1087,8 +1087,6 @@ static int lan966x_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, lan966x);
lan966x->dev = &pdev->dev;
- lan966x->debugfs_root = debugfs_create_dir("lan966x", NULL);
-
if (!device_get_mac_address(&pdev->dev, mac_addr)) {
ether_addr_copy(lan966x->base_mac, mac_addr);
} else {
@@ -1179,6 +1177,8 @@ static int lan966x_probe(struct platform_device *pdev)
return dev_err_probe(&pdev->dev, -ENODEV,
"no ethernet-ports child found\n");
+ lan966x->debugfs_root = debugfs_create_dir("lan966x", NULL);
+
/* init switch */
lan966x_init(lan966x);
lan966x_stats_init(lan966x);
@@ -1257,6 +1257,8 @@ static int lan966x_probe(struct platform_device *pdev)
destroy_workqueue(lan966x->stats_queue);
mutex_destroy(&lan966x->stats_lock);
+ debugfs_remove_recursive(lan966x->debugfs_root);
+
return err;
}
--
This patch was previously sent as part of a bigger series:
https://lore.kernel.org/lkml/20240430083730.134918-9-herve.codina@bootlin.com/
As it is a simple fix, this v2 is the patch extracted from the series
and sent alone to net.
Changes v1 -> v2
Add 'Reviewed-by: Andrew Lunn <andrew@lunn.ch>'
2.44.0
next reply other threads:[~2024-05-13 11:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-13 11:18 Herve Codina [this message]
2024-05-13 11:44 ` [PATCH net v2] net: lan966x: remove debugfs directory in probe() error path Horatiu Vultur
2024-05-16 8:50 ` patchwork-bot+netdevbpf
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