Patch "pinctrl: mvebu: Fix devinit_dove_pinctrl_probe function" has been added to the 4.19-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    pinctrl: mvebu: Fix devinit_dove_pinctrl_probe function

to the 4.19-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     pinctrl-mvebu-fix-devinit_dove_pinctrl_probe-functio.patch
and it can be found in the queue-4.19 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 4984dff1d9139b1993503fb5f1ef48c0eecf9c3b
Author: Wang Jianzheng <wangjianzheng@xxxxxxxx>
Date:   Thu Aug 29 14:48:23 2024 +0800

    pinctrl: mvebu: Fix devinit_dove_pinctrl_probe function
    
    [ Upstream commit c25478419f6fd3f74c324a21ec007cf14f2688d7 ]
    
    When an error occurs during the execution of the function
    __devinit_dove_pinctrl_probe, the clk is not properly disabled.
    
    Fix this by calling clk_disable_unprepare before return.
    
    Fixes: ba607b6238a1 ("pinctrl: mvebu: make pdma clock on dove mandatory")
    Signed-off-by: Wang Jianzheng <wangjianzheng@xxxxxxxx>
    Link: https://lore.kernel.org/20240829064823.19808-1-wangjianzheng@xxxxxxxx
    Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/pinctrl/mvebu/pinctrl-dove.c b/drivers/pinctrl/mvebu/pinctrl-dove.c
index 2c5032d0def52..8a77289fe96fb 100644
--- a/drivers/pinctrl/mvebu/pinctrl-dove.c
+++ b/drivers/pinctrl/mvebu/pinctrl-dove.c
@@ -773,7 +773,7 @@ static int dove_pinctrl_probe(struct platform_device *pdev)
 		of_match_device(dove_pinctrl_of_match, &pdev->dev);
 	struct mvebu_mpp_ctrl_data *mpp_data;
 	void __iomem *base;
-	int i;
+	int i, ret;
 
 	pdev->dev.platform_data = (void *)match->data;
 
@@ -789,13 +789,17 @@ static int dove_pinctrl_probe(struct platform_device *pdev)
 	clk_prepare_enable(clk);
 
 	base = devm_platform_get_and_ioremap_resource(pdev, 0, &mpp_res);
-	if (IS_ERR(base))
-		return PTR_ERR(base);
+	if (IS_ERR(base)) {
+		ret = PTR_ERR(base);
+		goto err_probe;
+	}
 
 	mpp_data = devm_kcalloc(&pdev->dev, dove_pinctrl_info.ncontrols,
 				sizeof(*mpp_data), GFP_KERNEL);
-	if (!mpp_data)
-		return -ENOMEM;
+	if (!mpp_data) {
+		ret = -ENOMEM;
+		goto err_probe;
+	}
 
 	dove_pinctrl_info.control_data = mpp_data;
 	for (i = 0; i < ARRAY_SIZE(dove_mpp_controls); i++)
@@ -814,8 +818,10 @@ static int dove_pinctrl_probe(struct platform_device *pdev)
 	}
 
 	mpp4_base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(mpp4_base))
-		return PTR_ERR(mpp4_base);
+	if (IS_ERR(mpp4_base)) {
+		ret = PTR_ERR(mpp4_base);
+		goto err_probe;
+	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
 	if (!res) {
@@ -826,8 +832,10 @@ static int dove_pinctrl_probe(struct platform_device *pdev)
 	}
 
 	pmu_base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(pmu_base))
-		return PTR_ERR(pmu_base);
+	if (IS_ERR(pmu_base)) {
+		ret = PTR_ERR(pmu_base);
+		goto err_probe;
+	}
 
 	gconfmap = syscon_regmap_lookup_by_compatible("marvell,dove-global-config");
 	if (IS_ERR(gconfmap)) {
@@ -837,12 +845,17 @@ static int dove_pinctrl_probe(struct platform_device *pdev)
 		adjust_resource(&fb_res,
 			(mpp_res->start & INT_REGS_MASK) + GC_REGS_OFFS, 0x14);
 		gc_base = devm_ioremap_resource(&pdev->dev, &fb_res);
-		if (IS_ERR(gc_base))
-			return PTR_ERR(gc_base);
+		if (IS_ERR(gc_base)) {
+			ret = PTR_ERR(gc_base);
+			goto err_probe;
+		}
+
 		gconfmap = devm_regmap_init_mmio(&pdev->dev,
 						 gc_base, &gc_regmap_config);
-		if (IS_ERR(gconfmap))
-			return PTR_ERR(gconfmap);
+		if (IS_ERR(gconfmap)) {
+			ret = PTR_ERR(gconfmap);
+			goto err_probe;
+		}
 	}
 
 	/* Warn on any missing DT resource */
@@ -850,6 +863,9 @@ static int dove_pinctrl_probe(struct platform_device *pdev)
 		dev_warn(&pdev->dev, FW_BUG "Missing pinctrl regs in DTB. Please update your firmware.\n");
 
 	return mvebu_pinctrl_probe(pdev);
+err_probe:
+	clk_disable_unprepare(clk);
+	return ret;
 }
 
 static struct platform_driver dove_pinctrl_driver = {