[PATCH 3.16 200/305] isa: Call isa_bus_init before dependent ISA bus drivers register

Ben Hutchings
2016-08-14T11:02:15Z

From: William Breathitt Gray <vilhelm.gray@gmail.com>

commit 32a5a0c047343b11f581f663a2309cf43d13466f upstream.

The isa_bus_init function must be called before drivers which utilize
the ISA bus driver are registered. A race condition for initilization
exists if device_initcall is used (the isa_bus_init callback is placed
in the same initcall level as dependent drivers which use module_init).
This patch ensures that isa_bus_init is called first by utilizing
postcore_initcall in favor of device_initcall.

Fixes: a5117ba7da37 ("[PATCH] Driver model: add ISA bus")
Cc: Rene Herman <rene.herman@keyaccess.nl>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/base/isa.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/base/isa.c
+++ b/drivers/base/isa.c
@@ -180,4 +180,4 @@ static int __init isa_bus_init(void)
return error;
}

-device_initcall(isa_bus_init);
+postcore_initcall(isa_bus_init);