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From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Johan Hovold <johan@kernel.org>,
	Roger Quadros <rogerq@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.4.y 2/2] usb: musb: omap2430: fix device leak at unbind
Date: Thu, 21 Aug 2025 12:20:25 -0400	[thread overview]
Message-ID: <20250821162025.780036-2-sashal@kernel.org> (raw)
In-Reply-To: <20250821162025.780036-1-sashal@kernel.org>

From: Johan Hovold <johan@kernel.org>

[ Upstream commit 1473e9e7679bd4f5a62d1abccae894fb86de280f ]

Make sure to drop the reference to the control device taken by
of_find_device_by_node() during probe when the driver is unbound.

Fixes: 8934d3e4d0e7 ("usb: musb: omap2430: Don't use omap_get_control_dev()")
Cc: stable@vger.kernel.org	# 3.13
Cc: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20250724091910.21092-5-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Removed populate_irqs-related goto changes ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/musb/omap2430.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 56f4fa411e27..db4e9b46fb8a 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -476,13 +476,13 @@ static int omap2430_probe(struct platform_device *pdev)
 			ARRAY_SIZE(musb_resources));
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err2;
+		goto err_put_control_otghs;
 	}
 
 	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err2;
+		goto err_put_control_otghs;
 	}
 
 	pm_runtime_enable(glue->dev);
@@ -497,7 +497,9 @@ static int omap2430_probe(struct platform_device *pdev)
 
 err3:
 	pm_runtime_disable(glue->dev);
-
+err_put_control_otghs:
+	if (!IS_ERR(glue->control_otghs))
+		put_device(glue->control_otghs);
 err2:
 	platform_device_put(musb);
 
@@ -511,6 +513,8 @@ static void omap2430_remove(struct platform_device *pdev)
 
 	platform_device_unregister(glue->musb);
 	pm_runtime_disable(glue->dev);
+	if (!IS_ERR(glue->control_otghs))
+		put_device(glue->control_otghs);
 }
 
 #ifdef CONFIG_PM
-- 
2.50.1


      reply	other threads:[~2025-08-21 16:20 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-21 12:43 FAILED: patch "[PATCH] usb: musb: omap2430: fix device leak at unbind" failed to apply to 5.4-stable tree gregkh
2025-08-21 16:20 ` [PATCH 5.4.y 1/2] usb: musb: omap2430: Convert to platform remove callback returning void Sasha Levin
2025-08-21 16:20   ` Sasha Levin [this message]

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