[patch] fix some warnings

warning.patch (text/plain), 774 bytes, created by Bertrand Jacquin on 2009-05-01 15:33:19 UTC

--- wdd.c.ori	2007-07-18 18:03:18.000000000 +0200
+++ wdd.c	2007-07-18 18:06:11.000000000 +0200
@@ -3,9 +3,13 @@
  */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include <string.h>
 
 const char dev_wd_str[] = "/dev/watchdog";
 const char root_str[] = "/";
@@ -18,7 +22,7 @@
 static inline void try_malloc() {
     void *heap;
 
-    heap = (void*)sbrk(NULL);
+    heap = (void*)sbrk(0);
     if (brk(heap + 4096))
 	exit(1);
     memset(heap, 0, 4096);
@@ -52,7 +56,7 @@
     void *heap;
     int ret;
 
-    heap = (void*)sbrk(NULL);
+    heap = (void*)sbrk(0);
     if (brk(heap + sizeof (struct stat)))
 	exit(1);
     memset(heap, 0, sizeof (struct stat));