soc: aspeed-lpc-ctrl: Fix clock cleanup in error path

Move syscon_regmap_lookup_by_compatible() above the
devm_clk_get() to avoid missing clk_disable_unprepare().

Fixes: 2f9b25f ("soc: aspeed: Re-enable FWH2AHB on AST2600")
Reported-by: Hulk Robot <[email protected]>
Signed-off-by: Yang Yingliang <[email protected]>
Signed-off-by: Joel Stanley <[email protected]>
Reviewed-by: Joel Stanley <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Link: https://lore.kernel.org/r/[email protected]'
Signed-off-by: Arnd Bergmann <[email protected]>

Author: Yang Yingliang

drivers/soc/aspeed/aspeed-lpc-ctrl.c

@@ -295,6 +295,16 @@ static int aspeed_lpc_ctrl_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
+	if (of_device_is_compatible(dev->of_node, "aspeed,ast2600-lpc-ctrl")) {
+		lpc_ctrl->fwh2ahb = true;
+
+		lpc_ctrl->scu = syscon_regmap_lookup_by_compatible("aspeed,ast2600-scu");
+		if (IS_ERR(lpc_ctrl->scu)) {
+			dev_err(dev, "couldn't find scu\n");
+			return PTR_ERR(lpc_ctrl->scu);
+		}
+	}
+
 	lpc_ctrl->clk = devm_clk_get(dev, NULL);
 	if (IS_ERR(lpc_ctrl->clk)) {
 		dev_err(dev, "couldn't get clock\n");
@@ -306,16 +316,6 @@ static int aspeed_lpc_ctrl_probe(struct platform_device *pdev)
 		return rc;
 	}
 
-	if (of_device_is_compatible(dev->of_node, "aspeed,ast2600-lpc-ctrl")) {
-		lpc_ctrl->fwh2ahb = true;
-
-		lpc_ctrl->scu = syscon_regmap_lookup_by_compatible("aspeed,ast2600-scu");
-		if (IS_ERR(lpc_ctrl->scu)) {
-			dev_err(dev, "couldn't find scu\n");
-			return PTR_ERR(lpc_ctrl->scu);
-		}
-	}
-
 	lpc_ctrl->miscdev.minor = MISC_DYNAMIC_MINOR;
 	lpc_ctrl->miscdev.name = DEVICE_NAME;
 	lpc_ctrl->miscdev.fops = &aspeed_lpc_ctrl_fops;