of: Clean up of_update_property

After searching for the old property, bail out with -ENODEV
if it was not found.

It is unnecessary to check if oldprop is NULL before removing
its binary file; the check was already done before.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rob Herring <robh@kernel.org>
diff --git a/drivers/of/base.c b/drivers/of/base.c
index f72d19b..6d4ee22 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1828,17 +1828,13 @@
 		next = &(*next)->next;
 	}
 	raw_spin_unlock_irqrestore(&devtree_lock, flags);
-	if (rc)
-		return rc;
-
-	/* Update the sysfs attribute */
-	if (oldprop)
-		sysfs_remove_bin_file(&np->kobj, &oldprop->attr);
-	__of_add_property_sysfs(np, newprop);
-
 	if (!found)
 		return -ENODEV;
 
+	/* Update the sysfs attribute */
+	sysfs_remove_bin_file(&np->kobj, &oldprop->attr);
+	__of_add_property_sysfs(np, newprop);
+
 	return 0;
 }