of: Fix null pointer related warnings in base.c file

Fixes the following sparse warnings:
drivers/of/base.c:176:41: warning: Using plain integer as NULL pointer
drivers/of/base.c:178:37: warning: Using plain integer as NULL pointer
drivers/of/base.c:500:49: warning: Using plain integer as NULL pointer

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/of/base.c b/drivers/of/base.c
index d9bfd49b1935..ddba57799fd7 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -173,9 +173,9 @@ struct property *of_find_property(const struct device_node *np,
                 return NULL;
 
         read_lock(&devtree_lock);
-        for (pp = np->properties; pp != 0; pp = pp->next) {
+        for (pp = np->properties; pp; pp = pp->next) {
                 if (of_prop_cmp(pp->name, name) == 0) {
-                        if (lenp != 0)
+                        if (lenp)
                                 *lenp = pp->length;
                         break;
                 }
@@ -497,7 +497,7 @@ struct device_node *of_find_node_with_property(struct device_node *from,
         read_lock(&devtree_lock);
         np = from ? from->allnext : allnodes;
         for (; np; np = np->allnext) {
-                for (pp = np->properties; pp != 0; pp = pp->next) {
+                for (pp = np->properties; pp; pp = pp->next) {
                         if (of_prop_cmp(pp->name, prop_name) == 0) {
                                 of_node_get(np);
                                 goto out;