[PATCH] uml: add generic ptrace requests

When we don't know how to handle ptrace(2) calls, call the arch-independent
ptrace_request like i386 (and I guess other archs) do, instead of returning
-EIO.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/um/kernel/ptrace.c

@@ -287,7 +287,7 @@ int sys_ptrace(long request, long pid, long addr, long data)
 	}
 #endif
 	default:
-		ret = -EIO;
+		ret = ptrace_request(child, request, addr, data);
 		break;
 	}
  out_tsk: