[POWERPC] arch/ppc/kernel/prom.c of_node_(get|put) cleanup

Remove redundant argument checks for of_node_get() and of_node_put().

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 1fc732a..3be52d6 100644 (file)
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1221,8 +1221,7 @@ struct device_node *of_find_node_by_name(struct device_node *from,
                if (np->name != NULL && strcasecmp(np->name, name) == 0
                    && of_node_get(np))
                        break;
-       if (from)
-               of_node_put(from);
+       of_node_put(from);
        read_unlock(&devtree_lock);
        return np;
 }
@@ -1250,8 +1249,7 @@ struct device_node *of_find_node_by_type(struct device_node *from,
                if (np->type != 0 && strcasecmp(np->type, type) == 0
                    && of_node_get(np))
                        break;
-       if (from)
-               of_node_put(from);
+       of_node_put(from);
        read_unlock(&devtree_lock);
        return np;
 }
@@ -1285,8 +1283,7 @@ struct device_node *of_find_compatible_node(struct device_node *from,
                if (device_is_compatible(np, compatible) && of_node_get(np))
                        break;
        }
-       if (from)
-               of_node_put(from);
+       of_node_put(from);
        read_unlock(&devtree_lock);
        return np;
 }
@@ -1329,8 +1326,7 @@ struct device_node *of_find_node_by_phandle(phandle handle)
        for (np = allnodes; np != 0; np = np->allnext)
                if (np->linux_phandle == handle)
                        break;
-       if (np)
-               of_node_get(np);
+       of_node_get(np);
        read_unlock(&devtree_lock);
        return np;
 }
@@ -1353,8 +1349,7 @@ struct device_node *of_find_all_nodes(struct device_node *prev)
        for (; np != 0; np = np->allnext)
                if (of_node_get(np))
                        break;
-       if (prev)
-               of_node_put(prev);
+       of_node_put(prev);
        read_unlock(&devtree_lock);
        return np;
 }
@@ -1399,8 +1394,7 @@ struct device_node *of_get_next_child(const struct device_node *node,
        for (; next != 0; next = next->sibling)
                if (of_node_get(next))
                        break;
-       if (prev)
-               of_node_put(prev);
+       of_node_put(prev);
        read_unlock(&devtree_lock);
        return next;
 }