Fixup locking and mark MPSAFE.

- Add locked variants of init() and start().
- Use callout_*() to manage callout.
- Test IFF_DRV_RUNNING rather than IFF_UP in wb_intr() to see if we are
  still active when an interrupt comes in.

I couldn't find any of these cards anywhere to test on myself, and google
turns up references to FreeBSD and OpenBSD manpages for this driver when
trying to locate a card that way.  I'm not sure anyone actually uses these
cards with FreeBSD.

Tested by:	NO ONE (despite repeated requests)

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/pci/if_wbreg.h b/sys/pci/if_wbreg.h
index 95ecbef..8a5b2cd 100644
--- a/sys/pci/if_wbreg.h
+++ b/sys/pci/if_wbreg.h
@@ -376,7 +376,7 @@ struct wb_softc {
 	caddr_t			wb_ldata_ptr;
 	struct wb_list_data	*wb_ldata;
 	struct wb_chain_data	wb_cdata;
-	struct callout_handle	wb_stat_ch;
+	struct callout		wb_stat_callout;
 	struct mtx		wb_mtx;
 };