1 files changed, 26 insertions, 15 deletions

diff --git a/drivers/of/base.c b/drivers/of/base.c
index 89e888a78899..48594f334151 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1511,11 +1511,31 @@ static int of_property_notify(int action, struct device_node *np,
 #endif
 
 /**
+ * __of_add_property - Add a property to a node without lock operations
+ */
+static int __of_add_property(struct device_node *np, struct property *prop)
+{
+	struct property **next;
+
+	prop->next = NULL;
+	next = &np->properties;
+	while (*next) {
+		if (strcmp(prop->name, (*next)->name) == 0)
+			/* duplicate ! don't insert it */
+			return -EEXIST;
+
+		next = &(*next)->next;
+	}
+	*next = prop;
+
+	return 0;
+}
+
+/**
  * of_add_property - Add a property to a node
  */
 int of_add_property(struct device_node *np, struct property *prop)
 {
-	struct property **next;
 	unsigned long flags;
 	int rc;
 
@@ -1523,27 +1543,17 @@ int of_add_property(struct device_node *np, struct property *prop)
 	if (rc)
 		return rc;
 
-	prop->next = NULL;
 	raw_spin_lock_irqsave(&devtree_lock, flags);
-	next = &np->properties;
-	while (*next) {
-		if (strcmp(prop->name, (*next)->name) == 0) {
-			/* duplicate ! don't insert it */
-			raw_spin_unlock_irqrestore(&devtree_lock, flags);
-			return -1;
-		}
-		next = &(*next)->next;
-	}
-	*next = prop;
+	rc = __of_add_property(np, prop);
 	raw_spin_unlock_irqrestore(&devtree_lock, flags);
 
 #ifdef CONFIG_PROC_DEVICETREE
 	/* try to add to proc as well if it was initialized */
-	if (np->pde)
+	if (!rc && np->pde)
 		proc_device_tree_add_prop(np->pde, prop);
 #endif /* CONFIG_PROC_DEVICETREE */
 
-	return 0;
+	return rc;
 }
 
 /**
@@ -1639,7 +1649,7 @@ int of_update_property(struct device_node *np, struct property *newprop)
 
 #ifdef CONFIG_PROC_DEVICETREE
 	/* try to add to proc as well if it was initialized */
-	if (np->pde)
+	if (!rc && np->pde)
 		proc_device_tree_update_prop(np->pde, newprop, oldprop);
 #endif /* CONFIG_PROC_DEVICETREE */
 
@@ -1710,6 +1720,7 @@ int of_attach_node(struct device_node *np)
 	np->allnext = of_allnodes;
 	np->parent->child = np;
 	of_allnodes = np;
+	of_node_clear_flag(np, OF_DETACHED);
 	raw_spin_unlock_irqrestore(&devtree_lock, flags);
 
 	of_add_proc_dt_entry(np);