procfs: remove sparse errors in proc_devtree.c

CHECK   fs/proc/proc_devtree.c
fs/proc/proc_devtree.c:197:14: warning: Using plain integer as NULL pointer
fs/proc/proc_devtree.c:203:34: warning: Using plain integer as NULL pointer
fs/proc/proc_devtree.c:210:14: warning: Using plain integer as NULL pointer
fs/proc/proc_devtree.c:223:26: warning: Using plain integer as NULL pointer
fs/proc/proc_devtree.c:226:14: warning: Using plain integer as NULL pointer

Signed-off-by: Michal Simek <monstr@monstr.eu>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c
index fc6c302..7ba79a5 100644 (file)
--- a/fs/proc/proc_devtree.c
+++ b/fs/proc/proc_devtree.c
@@ -195,20 +195,20 @@ void proc_device_tree_add_node(struct device_node *np,
                        p = fixup_name(np, de, p);
 
                ent = proc_mkdir(p, de);
-               if (ent == 0)
+               if (ent == NULL)
                        break;
                proc_device_tree_add_node(child, ent);
        }
        of_node_put(child);
 
-       for (pp = np->properties; pp != 0; pp = pp->next) {
+       for (pp = np->properties; pp != NULL; pp = pp->next) {
                p = pp->name;
 
                if (duplicate_name(de, p))
                        p = fixup_name(np, de, p);
 
                ent = __proc_device_tree_add_prop(de, pp, p);
-               if (ent == 0)
+               if (ent == NULL)
                        break;
        }
 }
@@ -221,10 +221,10 @@ void __init proc_device_tree_init(void)
        struct device_node *root;
 
        proc_device_tree = proc_mkdir("device-tree", NULL);
-       if (proc_device_tree == 0)
+       if (proc_device_tree == NULL)
                return;
        root = of_find_node_by_path("/");
-       if (root == 0) {
+       if (root == NULL) {
                printk(KERN_ERR "/proc/device-tree: can't find root\n");
                return;
        }