PnP: move pnpacpi/pnpbios_init to after PCI init

We already did that a long time ago for pnp_system_init, but
pnpacpi_init and pnpbios_init remained as subsys_initcalls, and get
linked into the kernel before the arch-specific routines that finalize
the PCI resources (pci_subsys_init).

This means that the PnP routines would either register their resources
before the PCI layer could, or would be unable to check whether a PCI
resource had already been registered.  Both are problematic.

I wanted to do this before 2.6.27, but every time we change something
like this, something breaks.  That said, _every_ single time we trust
some firmware (like PnP tables) more than we trust the hardware itself
(like PCI probing), the problems have been worse.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 6 insertions, 3 deletions

diff --git a/drivers/pnp/Makefile b/drivers/pnp/Makefile
index 26f5abc9c3f7..e83f34f1b5ba 100644
--- a/drivers/pnp/Makefile
+++ b/drivers/pnp/Makefile
@@ -2,12 +2,15 @@
 # Makefile for the Linux Plug-and-Play Support.
 #
 
-obj-y           := core.o card.o driver.o resource.o manager.o support.o interface.o quirks.o system.o
+obj-y           := core.o card.o driver.o resource.o manager.o support.o interface.o quirks.o
 
 obj-$(CONFIG_PNPACPI)           += pnpacpi/
 obj-$(CONFIG_PNPBIOS)           += pnpbios/
 obj-$(CONFIG_ISAPNP)            += isapnp/
 
+# pnp_system_init goes after pnpacpi/pnpbios init
+obj-y                           += system.o
+
 ifeq ($(CONFIG_PNP_DEBUG),y)
 EXTRA_CFLAGS += -DDEBUG
 endif
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index c1b9ea34977b..53561d72b4ee 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -268,7 +268,7 @@ static int __init pnpacpi_init(void)
         return 0;
 }
 
-subsys_initcall(pnpacpi_init);
+fs_initcall(pnpacpi_init);
 
 static int __init pnpacpi_setup(char *str)
 {
diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
index 19a4be1a9a31..662dfcddedc6 100644
--- a/drivers/pnp/pnpbios/core.c
+++ b/drivers/pnp/pnpbios/core.c
@@ -571,7 +571,7 @@ static int __init pnpbios_init(void)
         return 0;
 }
 
-subsys_initcall(pnpbios_init);
+fs_initcall(pnpbios_init);
 
 static int __init pnpbios_thread_init(void)
 {