soc: microchip: mpfs-mss-top-sysreg: Fix resource leak on driver unbind

Use devm_mfd_add_devices() instead of mfd_add_devices() to ensure
child devices are properly removed when the driver unbinds.

Fixes: 4aac11c ("soc: microchip: add mfd drivers for two syscon regions on PolarFire SoC")
Signed-off-by: Felix Gu <[email protected]>
Signed-off-by: Conor Dooley <[email protected]>

Author: outman119

drivers/soc/microchip/mpfs-mss-top-sysreg.c

@@ -16,8 +16,10 @@ static int mpfs_mss_top_sysreg_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	int ret;
 
-	ret = mfd_add_devices(dev, PLATFORM_DEVID_NONE, mpfs_mss_top_sysreg_devs,
-			      ARRAY_SIZE(mpfs_mss_top_sysreg_devs) , NULL, 0, NULL);
+	ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
+				   mpfs_mss_top_sysreg_devs,
+				   ARRAY_SIZE(mpfs_mss_top_sysreg_devs), NULL,
+				   0, NULL);
 	if (ret)
 		return ret;