[PATCH] uml: non-void functions should return something

There are a few functions which are declared to return something, but don't.
These are actually infinite loops which are forced to be declared as non-void.
 This makes them all return 0.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/um/drivers/ubd_kern.c

@@ -1387,15 +1387,6 @@ int io_thread(void *arg)
 			printk("io_thread - write failed, fd = %d, err = %d\n",
 			       kernel_fd, -n);
 	}
-}
 
-/*
+	return 0;
- * Overrides for Emacs so that we follow Linus's tabbing style.
+}
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */

arch/um/kernel/sigio_user.c

@@ -216,6 +216,8 @@ static int write_sigio_thread(void *unused)
 				       "err = %d\n", -n);
 		}
 	}
+
+	return 0;
 }
 
 static int need_poll(int n)

arch/um/os-Linux/aio.c

@@ -210,6 +210,8 @@ static int not_aio_thread(void *arg)
                         printk("not_aio_thread - write failed, fd = %d, "
                                "err = %d\n", aio_req_fd_r, -err);
         }
+
+	return 0;
 }
 
 static int aio_pid = -1;