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>

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 33f1c1c32edf75ecc5a93e4a171c0afa2806a123..a8160d65f32be3f3be08fc4f2813f7b2c5b3def6 100644 (file)
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1054,7 +1054,7 @@ 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) &&         \
@@ -1062,6 +1062,7 @@ MODULE_LICENSE ("GPL");
        !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