isapnp driver semaphore to mutex

Changed the isapnp semaphore to a mutex.

[akpm@linux-foundation.org: no externs-in-c]
[akpm@linux-foundation.org: build fix]
Signed-off-by: Daniel Walker <dwalker@mvista.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/pnp.h b/include/linux/pnp.h
index b9339d8b95bc..cd6332b88829 100644
--- a/include/linux/pnp.h
+++ b/include/linux/pnp.h
@@ -258,6 +258,7 @@ extern struct pnp_protocol isapnp_protocol;
 #else
 #define pnp_device_is_isapnp(dev) 0
 #endif
+extern struct mutex pnp_res_mutex;
 
 #ifdef CONFIG_PNPBIOS
 extern struct pnp_protocol pnpbios_protocol;