USB: ps3: don't call ps3_system_bus_driver_register on other platforms

ps3_system_bus_driver_register is PS3 platform specific function.
On other platforms, it triggers WARN_ON in kref_get.
Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/host/ehci-hcd.c

@@ -42,6 +42,9 @@
 #include <asm/irq.h>
 #include <asm/system.h>
 #include <asm/unaligned.h>
+#ifdef CONFIG_PPC_PS3
+#include <asm/firmware.h>
+#endif
 
 
 /*-------------------------------------------------------------------------*/
@@ -968,7 +971,9 @@ static int __init ehci_hcd_init(void)
 #endif
 
 #ifdef PS3_SYSTEM_BUS_DRIVER
-	retval = ps3_system_bus_driver_register(&PS3_SYSTEM_BUS_DRIVER);
+	if (firmware_has_feature(FW_FEATURE_PS3_LV1)) {
+		retval = ps3_system_bus_driver_register(
+				&PS3_SYSTEM_BUS_DRIVER);
 		if (retval < 0) {
 #ifdef PLATFORM_DRIVER
 			platform_driver_unregister(&PLATFORM_DRIVER);
@@ -978,6 +983,7 @@ static int __init ehci_hcd_init(void)
 #endif
 			return retval;
 		}
+	}
 #endif
 
 	return retval;
@@ -993,6 +999,7 @@ static void __exit ehci_hcd_cleanup(void)
 	pci_unregister_driver(&PCI_DRIVER);
 #endif
 #ifdef PS3_SYSTEM_BUS_DRIVER
+	if (firmware_has_feature(FW_FEATURE_PS3_LV1))
 		ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
 #endif
 }

drivers/usb/host/ohci-hcd.c

@@ -42,6 +42,9 @@
 #include <asm/system.h>
 #include <asm/unaligned.h>
 #include <asm/byteorder.h>
+#ifdef CONFIG_PPC_PS3
+#include <asm/firmware.h>
+#endif
 
 #include "../core/hcd.h"
 
@@ -944,9 +947,12 @@ static int __init ohci_hcd_mod_init(void)
 		sizeof (struct ed), sizeof (struct td));
 
 #ifdef PS3_SYSTEM_BUS_DRIVER
-	retval = ps3_system_bus_driver_register(&PS3_SYSTEM_BUS_DRIVER);
+	if (firmware_has_feature(FW_FEATURE_PS3_LV1)) {
+		retval = ps3_system_bus_driver_register(
+				&PS3_SYSTEM_BUS_DRIVER);
 		if (retval < 0)
 			goto error_ps3;
+	}
 #endif
 
 #ifdef PLATFORM_DRIVER
@@ -992,6 +998,7 @@ static int __init ohci_hcd_mod_init(void)
  error_platform:
 #endif
 #ifdef PS3_SYSTEM_BUS_DRIVER
+	if (firmware_has_feature(FW_FEATURE_PS3_LV1))
 		ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
  error_ps3:
 #endif
@@ -1014,6 +1021,7 @@ static void __exit ohci_hcd_mod_exit(void)
 	platform_driver_unregister(&PLATFORM_DRIVER);
 #endif
 #ifdef PS3_SYSTEM_BUS_DRIVER
+	if (firmware_has_feature(FW_FEATURE_PS3_LV1))
 		ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
 #endif
 }