modules: fix module waiting for dependent modules' init
authorRusty Russell <rusty@rustcorp.com.au>
Mon, 10 Mar 2008 18:43:52 +0000 (11:43 -0700)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Tue, 11 Mar 2008 01:01:19 +0000 (18:01 -0700)
commit6c5db22d280302c33dafb309c25bf2841fb99c37
tree0d3711b8a32646f52eca5015447256a30bc96a88
parent2668db9111bb1a6ab5a54f41f703179f35c7d098
modules: fix module waiting for dependent modules' init

Commit c9a3ba55 (module: wait for dependent modules doing init.) didn't quite
work because the waiter holds the module lock, meaning that the state of the
module it's waiting for cannot change.

Fortunately, it's fairly simple to update the state outside the lock and do
the wakeup.

Thanks to Jan Glauber for tracking this down and testing (qdio and qeth).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/module.c