[PATCH] Syslets - Fix cachemiss_thread return value

[Jeff Dike <jdike@addtoit.com>]

cachemiss_thread should explicitly return 0 or error instead of
task_ret_reg(current) (which is -ENOSYS anyway) because
async_thread_helper is careful to put the return value in eax anyway.

On x86_64, it looks like async_child_rip is similarly careful.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
--
 kernel/async.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6/kernel/async.c
===================================================================
--- linux-2.6.orig/kernel/async.c	2007-05-29 20:11:11.000000000 -0400
+++ linux-2.6/kernel/async.c	2007-05-31 14:12:49.000000000 -0400
@@ -575,7 +575,7 @@ static long cachemiss_thread(void *data)
 	struct task_struct *t = current;
 	struct async_head *ah = args->ah;
 	struct async_thread *at;
-	int ret;
+	int ret = 0;
 
 	at = &t->__at;
 	async_thread_init(t, at, ah);
@@ -607,7 +607,7 @@ static long cachemiss_thread(void *data)
 	complete(&ah->start_done);
 
 	async_cachemiss_loop(at, ah, t);
-	return task_ret_reg(t);
+	return ret;
 }
 
 /**