OHCI: Fix problem if SM501 and another platform driver is selected

If the SM501 and another platform driver, such as the SM501
then we end up defining PLATFORM_DRIVER twice. This patch
seperated the SM501 onto a seperate define of SM501_OHCI_DRIVER
so that it can be selected without overwriting the original
definition.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/host/ohci-hcd.c

@@ -1054,14 +1054,15 @@ MODULE_LICENSE ("GPL");
 
 #ifdef CONFIG_MFD_SM501
 #include "ohci-sm501.c"
-#define PLATFORM_DRIVER		ohci_hcd_sm501_driver
+#define SM501_OHCI_DRIVER	ohci_hcd_sm501_driver
 #endif
 
 #if	!defined(PCI_DRIVER) &&		\
 	!defined(PLATFORM_DRIVER) &&	\
 	!defined(OF_PLATFORM_DRIVER) &&	\
 	!defined(SA1111_DRIVER) &&	\
 	!defined(PS3_SYSTEM_BUS_DRIVER) && \
+	!defined(SM501_OHCI_DRIVER) && \
 	!defined(SSB_OHCI_DRIVER)
 #error "missing bus glue for ohci-hcd"
 #endif
@@ -1121,9 +1122,18 @@ static int __init ohci_hcd_mod_init(void)
 		goto error_ssb;
 #endif
 
+#ifdef SM501_OHCI_DRIVER
+	retval = platform_driver_register(&SM501_OHCI_DRIVER);
+	if (retval < 0)
+		goto error_sm501;
+#endif
+
 	return retval;
 
 	/* Error path */
+#ifdef SM501_OHCI_DRIVER
+ error_sm501:
+#endif
 #ifdef SSB_OHCI_DRIVER
  error_ssb:
 #endif
@@ -1159,6 +1169,9 @@ module_init(ohci_hcd_mod_init);
 
 static void __exit ohci_hcd_mod_exit(void)
 {
+#ifdef SM501_OHCI_DRIVER
+	platform_driver_unregister(&SM501_OHCI_DRIVER);
+#endif
 #ifdef SSB_OHCI_DRIVER
 	ssb_driver_unregister(&SSB_OHCI_DRIVER);
 #endif