[openwrt/openwrt] ath79: gpio-latch-mikrotik: use devm_mutex_init

[LEDE Commits]

robimarko pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/d51353db26f1e625fa95b36bc554902083dc72d3

commit d51353db26f1e625fa95b36bc554902083dc72d3
Author: Rosen Penev <rosenp at gmail.com>
AuthorDate: Fri Oct 4 13:24:29 2024 -0700

    ath79: gpio-latch-mikrotik: use devm_mutex_init
    
    Avoids needing to call mutex_destroy in error paths, which is missing
    anyway.
    
    Signed-off-by: Rosen Penev <rosenp at gmail.com>
    Link: https://github.com/openwrt/openwrt/pull/16620
    Signed-off-by: Robert Marko <robimarko at gmail.com>
---
 target/linux/ath79/files/drivers/gpio/gpio-latch-mikrotik.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/target/linux/ath79/files/drivers/gpio/gpio-latch-mikrotik.c b/target/linux/ath79/files/drivers/gpio/gpio-latch-mikrotik.c
index 70f091b79f..6e3f0f9690 100644
--- a/target/linux/ath79/files/drivers/gpio/gpio-latch-mikrotik.c
+++ b/target/linux/ath79/files/drivers/gpio/gpio-latch-mikrotik.c
@@ -110,14 +110,19 @@ static int gpio_latch_probe(struct platform_device *pdev)
 	struct gpio_latch_chip *glc;
 	struct gpio_chip *gc;
 	struct device *dev = &pdev->dev;
-	int i, n;
+	int err, i, n;
 
 	glc = devm_kzalloc(dev, sizeof(*glc), GFP_KERNEL);
 	if (!glc)
 		return -ENOMEM;
 
-	mutex_init(&glc->mutex);
-	mutex_init(&glc->latch_mutex);
+	err = devm_mutex_init(&pdev->dev, &glc->mutex);
+	if (err)
+		return err;
+
+	err = devm_mutex_init(&pdev->dev, &glc->latch_mutex);
+	if (err)
+		return err;
 
 	n = gpiod_count(dev, NULL);
 	if (n <= 0)