[PATCH] pinctrl: pinctrl-pic32: Fix resource leaks

[Ethan Tidmore <ethantidmore06@gmail.com>]

Add three missing clk_disable_unprepare() in early return error paths.

Detected by Smatch:
drivers/pinctrl/pinctrl-pic32.c:2211 pic32_pinctrl_probe() warn:
'pctl->clk' from clk_prepare_enable() not released on lines: 2208.

drivers/pinctrl/pinctrl-pic32.c:2274 pic32_gpio_probe() warn:
'bank->clk' from clk_prepare_enable() not released on lines: 2264,2272.

Fixes: 2ba384e6c3810 ("pinctrl: pinctrl-pic32: Add PIC32 pin control driver")
Signed-off-by: Ethan Tidmore <ethantidmore06@gmail.com>
---
 drivers/pinctrl/pinctrl-pic32.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-pic32.c b/drivers/pinctrl/pinctrl-pic32.c
index eb438c9d9667..cf098c183b14 100644
--- a/drivers/pinctrl/pinctrl-pic32.c
+++ b/drivers/pinctrl/pinctrl-pic32.c
@@ -2204,6 +2204,7 @@ static int pic32_pinctrl_probe(struct platform_device *pdev)
 	pctl->pctldev = devm_pinctrl_register(&pdev->dev, &pic32_pinctrl_desc,
 					      pctl);
 	if (IS_ERR(pctl->pctldev)) {
+		clk_disable_unprepare(pctl->clk);
 		dev_err(&pdev->dev, "Failed to register pinctrl device\n");
 		return PTR_ERR(pctl->pctldev);
 	}
@@ -2260,8 +2261,10 @@ static int pic32_gpio_probe(struct platform_device *pdev)
 	girq->num_parents = 1;
 	girq->parents = devm_kcalloc(&pdev->dev, 1, sizeof(*girq->parents),
 				     GFP_KERNEL);
-	if (!girq->parents)
-		return -ENOMEM;
+	if (!girq->parents) {
+		ret = -ENOMEM;
+		goto err_clk_cleanup;
+	}
 	girq->default_type = IRQ_TYPE_NONE;
 	girq->handler = handle_level_irq;
 	girq->parents[0] = irq;
@@ -2269,9 +2272,13 @@ static int pic32_gpio_probe(struct platform_device *pdev)
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Failed to add GPIO chip %u: %d\n",
 			id, ret);
-		return ret;
+		goto err_clk_cleanup;
 	}
 	return 0;
+
+err_clk_cleanup:
+	clk_disable_unprepare(bank->clk);
+	return ret;
 }
 
 static const struct of_device_id pic32_pinctrl_of_match[] = {
-- 
2.53.0