From: William Breathitt Gray <vilhelm.gray@gmail.com>
Date: Wed, 11 May 2016 21:01:40 +0000 (-0400)
Subject: isa: Call isa_bus_init before dependent ISA bus drivers register
X-Git-Tag: v5.15~13396^2~1
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=32a5a0c047343b11f581f663a2309cf43d13466f;p=mirror_ubuntu-kernels.git

isa: Call isa_bus_init before dependent ISA bus drivers register

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>
---

diff --git a/drivers/base/isa.c b/drivers/base/isa.c
index 91dba65d7264..cd6ccdcf9df0 100644
--- 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);