[PATCH] uml: dont check NR_syscalls

Remove an unnecessary and even dangerous check in is_syscall()
The bug was inserted by my patch syscall-security-1.
Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/um/sys-i386/ptrace.c

@@ -28,8 +28,8 @@ int is_syscall(unsigned long addr)
 		       addr);
 		return(0);
 	}
-	return( (instr == 0x80cd || instr == 0x340f) &&
-	        PT_REGS_EAX(&current->thread.regs) < NR_syscalls);
+	/* int 0x80 or sysenter */
+	return((instr == 0x80cd) || (instr == 0x340f));
 }
 
 /* determines which flags the user has access to. */