linux-kernel - [PATCH] x86/agp: fix agp_amd64_init module initialization regression

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Message-Id: <20100204090802S.fujita.tomonori@lab.ntt.co.jp>
Date:	Thu, 4 Feb 2010 09:12:03 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	mingo@...e.hu
Cc:	linux-kernel@...r.kernel.org, mitov@...p.bas.bg, davej@...hat.com
Subject: [PATCH] x86/agp: fix agp_amd64_init module initialization
 regression

This fixes the regression introduced by commit
42590a75019a50012f25a962246498dead428433 ("x86/agp: Fix agp_amd64_init
and agp_amd64_cleanup").

The commit 61684ceaad4f65d1a9832c722f7bd5e7fc714de9 fixed the above
regression but there is still a problem in the module initialization;
when apg_amd64 is built as a module, the GART IOMMU is not still
initialized.

Reported-by: Marin Mitov <mitov@...p.bas.bg>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Tested-by: Marin Mitov <mitov@...p.bas.bg>
---
 drivers/char/agp/amd64-agp.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 34cf04e..fd50ead 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -767,16 +767,19 @@ int __init agp_amd64_init(void)
 
 static int __init agp_amd64_mod_init(void)
 {
+#ifndef MODULE
 	if (gart_iommu_aperture)
 		return agp_bridges_found ? 0 : -ENODEV;
-
+#endif
 	return agp_amd64_init();
 }
 
 static void __exit agp_amd64_cleanup(void)
 {
+#ifndef MODULE
 	if (gart_iommu_aperture)
 		return;
+#endif
 	if (aperture_resource)
 		release_resource(aperture_resource);
 	pci_unregister_driver(&agp_amd64_pci_driver);
-- 
1.5.6.5

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