[MIPS] die(): Properly declare as non-returning

 This marks the declaration of die() correctly, removing "control reaches
end of non-void function" warnings from non-void functions that die() at
the end.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/ptrace.h b/include/asm-mips/ptrace.h
index 1906938..85b4436 100644
--- a/include/asm-mips/ptrace.h
+++ b/include/asm-mips/ptrace.h
@@ -86,7 +86,7 @@
 
 extern asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit);
 
-extern NORET_TYPE void die(const char *, struct pt_regs *);
+extern NORET_TYPE void die(const char *, struct pt_regs *) ATTRIB_NORET;
 
 static inline void die_if_kernel(const char *str, struct pt_regs *regs)
 {