linux-kernel - [25/75] alpha: Add irongate

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Date:	Mon, 22 Apr 2013 15:25:59 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org,
	"Jay Estabrook" <jay.estabrook@...il.com>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Matt Turner" <mattst88@...il.com>,
	"Michael Cree" <mcree@...on.net.nz>
Subject: [25/75] alpha: Add irongate_io to PCI bus resources

3.2.44-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Jay Estabrook <jay.estabrook@...il.com>

commit aa8b4be3ac049c8b1df2a87e4d1d902ccfc1f7a9 upstream.

Fixes a NULL pointer dereference at boot on UP1500.

Reviewed-and-Tested-by: Matt Turner <mattst88@...il.com>
Signed-off-by: Jay Estabrook <jay.estabrook@...il.com>
Signed-off-by: Matt Turner <mattst88@...il.com>
Signed-off-by: Michael Cree <mcree@...on.net.nz>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 arch/alpha/kernel/sys_nautilus.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/arch/alpha/kernel/sys_nautilus.c
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -189,6 +189,10 @@ nautilus_machine_check(unsigned long vec
 extern void free_reserved_mem(void *, void *);
 extern void pcibios_claim_one_bus(struct pci_bus *);
 
+static struct resource irongate_io = {
+	.name	= "Irongate PCI IO",
+	.flags	= IORESOURCE_IO,
+};
 static struct resource irongate_mem = {
 	.name	= "Irongate PCI MEM",
 	.flags	= IORESOURCE_MEM,
@@ -210,6 +214,7 @@ nautilus_init_pci(void)
 
 	irongate = pci_get_bus_and_slot(0, 0);
 	bus->self = irongate;
+	bus->resource[0] = &irongate_io;
 	bus->resource[1] = &irongate_mem;
 
 	pci_bus_size_bridges(bus);

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