More NULL pointer fixes

Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

bsd-user/bsdload.c

@@ -163,7 +163,7 @@ int loader_exec(const char * filename, char ** argv, char ** envp,
 
     bprm.p = TARGET_PAGE_SIZE*MAX_ARG_PAGES-sizeof(unsigned int);
     for (i=0 ; i<MAX_ARG_PAGES ; i++)       /* clear page-table */
-            bprm.page[i] = 0;
+            bprm.page[i] = NULL;
     retval = open(filename, O_RDONLY);
     if (retval < 0)
         return retval;

bsd-user/elfload.c

@@ -1014,7 +1014,7 @@ static const char *lookup_symbolxx(struct syminfo *s, target_ulong orig_addr)
     key.st_value = orig_addr;
 
     sym = bsearch(&key, syms, s->disas_num_syms, sizeof(*syms), symfind);
-    if (sym != 0) {
+    if (sym != NULL) {
         return s->disas_strtab + sym->st_name;
     }
 

linux-user/elfload.c

@@ -1220,7 +1220,7 @@ static const char *lookup_symbolxx(struct syminfo *s, target_ulong orig_addr)
     key.st_value = orig_addr;
 
     sym = bsearch(&key, syms, s->disas_num_syms, sizeof(*syms), symfind);
-    if (sym != 0) {
+    if (sym != NULL) {
         return s->disas_strtab + sym->st_name;
     }
 

linux-user/linuxload.c

@@ -165,7 +165,7 @@ int loader_exec(const char * filename, char ** argv, char ** envp,
 
     bprm->p = TARGET_PAGE_SIZE*MAX_ARG_PAGES-sizeof(unsigned int);
     for (i=0 ; i<MAX_ARG_PAGES ; i++)       /* clear page-table */
-            bprm->page[i] = 0;
+            bprm->page[i] = NULL;
     retval = open(filename, O_RDONLY);
     if (retval < 0)
         return retval;

qemu-char.c

@@ -1947,7 +1947,7 @@ static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg)
 static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
 {
     TCPCharDriver *s = chr->opaque;
-    struct msghdr msg = { 0, };
+    struct msghdr msg = { NULL, };
     struct iovec iov[1];
     union {
         struct cmsghdr cmsg;
@@ -2212,7 +2212,7 @@ CharDriverState *qemu_chr_open(const char *label, const char *filename, void (*i
     CharDriverState *chr;
 
     if (!strcmp(filename, "vc")) {
-        chr = text_console_init(0);
+        chr = text_console_init(NULL);
     } else
     if (strstart(filename, "vc:", &p)) {
         chr = text_console_init(p);

slirp/tcp_timer.c

@@ -74,13 +74,15 @@ tcp_slowtimo(Slirp *slirp)
 	 * Search through tcb's and update active timers.
 	 */
 	ip = slirp->tcb.so_next;
-	if (ip == 0)
+        if (ip == NULL) {
             return;
+        }
 	for (; ip != &slirp->tcb; ip = ipnxt) {
 		ipnxt = ip->so_next;
 		tp = sototcpcb(ip);
-		if (tp == 0)
+                if (tp == NULL) {
                         continue;
+                }
 		for (i = 0; i < TCPT_NTIMERS; i++) {
 			if (tp->t_timer[i] && --tp->t_timer[i] == 0) {
 				tcp_timers(tp,i);

vnc_keysym.h

@@ -320,5 +320,5 @@ static const name2keysym_t name2keysym[]={
 {"Katakana_Real", 0xff25},
 {"Eisu_toggle", 0xff30},
 
-{0,0},
+{NULL,0},
 };