h8300 trival patches

- warning fix.
- call trace area check fix.
- There is no meaning, ' & ' it deletes

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/h8300/kernel/sys_h8300.c b/arch/h8300/kernel/sys_h8300.c
index 11ba75a..de7688c 100644
--- a/arch/h8300/kernel/sys_h8300.c
+++ b/arch/h8300/kernel/sys_h8300.c
@@ -288,9 +288,9 @@
 int kernel_execve(const char *filename, char *const argv[], char *const envp[])
 {
 	register long res __asm__("er0");
+	register char *const *_c __asm__("er3") = envp;
+	register char *const *_b __asm__("er2") = argv;
 	register const char * _a __asm__("er1") = filename;
-	register void *_b __asm__("er2") = argv;
-	register void *_c __asm__("er3") = envp;
 	__asm__ __volatile__ ("mov.l %1,er0\n\t"
 			"trapa	#0\n\t"
 			: "=r" (res)