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>

1 files changed, 13 insertions, 5 deletions

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index fa6a7ceaa0db..f0d29eda3c6d 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/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 (retval < 0)
-                goto error_ps3;
+        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
@@ -992,7 +998,8 @@ static int __init ohci_hcd_mod_init(void)
  error_platform:
 #endif
 #ifdef PS3_SYSTEM_BUS_DRIVER
-        ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
+        if (firmware_has_feature(FW_FEATURE_PS3_LV1))
+                ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
  error_ps3:
 #endif
         return retval;
@@ -1014,7 +1021,8 @@ static void __exit ohci_hcd_mod_exit(void)
         platform_driver_unregister(&PLATFORM_DRIVER);
 #endif
 #ifdef PS3_SYSTEM_BUS_DRIVER
-        ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
+        if (firmware_has_feature(FW_FEATURE_PS3_LV1))
+                ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
 #endif
 }
 module_exit(ohci_hcd_mod_exit);