diff options
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/base.c | 36 |
1 files changed, 14 insertions, 22 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c index 6ad3dc976b18..239e3da9e728 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -1597,7 +1597,7 @@ int of_update_property(struct device_node *np, struct property *newprop) { struct property **next, *oldprop; unsigned long flags; - int rc, found = 0; + int rc = 0; rc = of_property_notify(OF_RECONFIG_UPDATE_PROPERTY, np, newprop); if (rc) @@ -1606,36 +1606,28 @@ int of_update_property(struct device_node *np, struct property *newprop) if (!newprop->name) return -EINVAL; - oldprop = of_find_property(np, newprop->name, NULL); - if (!oldprop) - return of_add_property(np, newprop); - raw_spin_lock_irqsave(&devtree_lock, flags); - next = &np->properties; - while (*next) { - if (*next == oldprop) { - /* found the node */ - newprop->next = oldprop->next; - *next = newprop; - oldprop->next = np->deadprops; - np->deadprops = oldprop; - found = 1; - break; - } - next = &(*next)->next; + oldprop = __of_find_property(np, newprop->name, NULL); + if (!oldprop) { + /* add the node */ + rc = __of_add_property(np, newprop); + } else { + /* replace the node */ + next = &oldprop; + newprop->next = oldprop->next; + *next = newprop; + oldprop->next = np->deadprops; + np->deadprops = oldprop; } raw_spin_unlock_irqrestore(&devtree_lock, flags); - if (!found) - return -ENODEV; - #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 */ - return 0; + return rc; } #if defined(CONFIG_OF_DYNAMIC) |