FAILED: patch "[PATCH] usb: dwc3: st: add missing depopulate in probe error path" failed to apply to 4.19-stable tree

FAILED: patch "[PATCH] usb: dwc3: st: add missing depopulate in probe error path" failed to apply to 4.19-stable tree

[gregkh]

The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.19.y
git checkout FETCH_HEAD
git cherry-pick -x cd4897bfd14f6a5388b21ba45a066541a0425199
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2024090143-yiddish-twisted-954d@gregkh' --subject-prefix 'PATCH 4.19.y' HEAD^..

Possible dependencies:

cd4897bfd14f ("usb: dwc3: st: add missing depopulate in probe error path")
e36721b90144 ("usb: dwc3: st: Add of_node_put() before return in probe function")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From cd4897bfd14f6a5388b21ba45a066541a0425199 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Date: Wed, 14 Aug 2024 11:39:57 +0200
Subject: [PATCH] usb: dwc3: st: add missing depopulate in probe error path

Depopulate device in probe error paths to fix leak of children
resources.

Fixes: f83fca0707c6 ("usb: dwc3: add ST dwc3 glue layer to manage dwc3 HC")
Cc: stable@vger.kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20240814093957.37940-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/dwc3/dwc3-st.c b/drivers/usb/dwc3/dwc3-st.c
index a9cb04043f08..c8c7cd0c1796 100644
--- a/drivers/usb/dwc3/dwc3-st.c
+++ b/drivers/usb/dwc3/dwc3-st.c
@@ -266,7 +266,7 @@ static int st_dwc3_probe(struct platform_device *pdev)
 	if (!child_pdev) {
 		dev_err(dev, "failed to find dwc3 core device\n");
 		ret = -ENODEV;
-		goto err_node_put;
+		goto depopulate;
 	}
 
 	dwc3_data->dr_mode = usb_get_dr_mode(&child_pdev->dev);
@@ -282,6 +282,7 @@ static int st_dwc3_probe(struct platform_device *pdev)
 	ret = st_dwc3_drd_init(dwc3_data);
 	if (ret) {
 		dev_err(dev, "drd initialisation failed\n");
+		of_platform_depopulate(dev);
 		goto undo_softreset;
 	}
 
@@ -291,6 +292,8 @@ static int st_dwc3_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, dwc3_data);
 	return 0;
 
+depopulate:
+	of_platform_depopulate(dev);
 err_node_put:
 	of_node_put(child);
 undo_softreset: