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[POWERPC] ps3: always make sure we're running on a PS3 

Add missing checks to PS3 specific drivers ps3av and sys-manager to verify that
we are actually running on a PS3 (pointed out by Arnd).

Correct existing checks in other subsystems/drivers to return -ENODEV instead
of zero.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Geert Uytterhoeven 2007-02-22 16:43:12 +01:00 committed by Paul Mackerras
parent 02567c6cda
commit 8170f52489
5 changed files with 17 additions and 4 deletions
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2
arch/powerpc/platforms/ps3/mm.c
View File

@ -294,7 +294,7 @@ static int __init ps3_mm_add_memory(void)
unsigned long nr_pages;
if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
return 0;
return -ENODEV;
BUG_ON(!mem_init_done);

2
arch/powerpc/platforms/ps3/system-bus.c
View File

@ -172,7 +172,7 @@ int __init ps3_system_bus_init(void)
int result;
if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
return 0;
return -ENODEV;
result = bus_register(&ps3_system_bus_type);
BUG_ON(result);

9
drivers/ps3/ps3av.c
View File

@ -24,6 +24,8 @@
#include <linux/reboot.h>
#include <linux/kernel.h>
#include <linux/ioctl.h>
#include <asm/firmware.h>
#include <asm/lv1call.h>
#include <asm/ps3av.h>
#include <asm/ps3.h>
@ -947,7 +949,12 @@ static struct ps3_vuart_port_driver ps3av_driver = {
static int ps3av_module_init(void)
{
int error = ps3_vuart_port_driver_register(&ps3av_driver);
int error;
if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
return -ENODEV;
error = ps3_vuart_port_driver_register(&ps3av_driver);
if (error) {
printk(KERN_ERR
"%s: ps3_vuart_port_driver_register failed %d\n",

6
drivers/ps3/sys-manager.c
View File

@ -22,7 +22,10 @@
#include <linux/module.h>
#include <linux/workqueue.h>
#include <linux/reboot.h>
#include <asm/firmware.h>
#include <asm/ps3.h>
#include "vuart.h"
MODULE_AUTHOR("Sony Corporation");
@ -598,6 +601,9 @@ static struct ps3_vuart_port_driver ps3_sys_manager = {
static int __init ps3_sys_manager_init(void)
{
if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
return -ENODEV;
return ps3_vuart_port_driver_register(&ps3_sys_manager);
}

2
drivers/ps3/vuart.c
View File

@ -1031,7 +1031,7 @@ int __init ps3_vuart_bus_init(void)
pr_debug("%s:%d:\n", __func__, __LINE__);
if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
return 0;
return -ENODEV;
init_MUTEX(&vuart_bus_priv.probe_mutex);
result = bus_register(&ps3_vuart_bus);