musb_core: fix musb_init_controller() error cleanup path

This function forgets to call usb_remove_hcd() or musb_gadget_cleanup() iff
sysfs_create_group() fails.

[ felipe.balbi@nokia.com : review the entire error path
	not only when we fail hcd or gadget ]

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 508fd58..705cc4a 100644 (file)
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1878,8 +1878,10 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
         */
        if (!plat) {
                dev_dbg(dev, "no platform_data?\n");
-               return -ENODEV;
+               status = -ENODEV;
+               goto fail0;
        }
+
        switch (plat->mode) {
        case MUSB_HOST:
 #ifdef CONFIG_USB_MUSB_HDRC_HCD
@@ -1901,13 +1903,16 @@ bad_config:
 #endif
        default:
                dev_err(dev, "incompatible Kconfig role setting\n");
-               return -EINVAL;
+               status = -EINVAL;
+               goto fail0;
        }
 
        /* allocate */
        musb = allocate_instance(dev, plat->config, ctrl);
-       if (!musb)
-               return -ENOMEM;
+       if (!musb) {
+               status = -ENOMEM;
+               goto fail0;
+       }
 
        spin_lock_init(&musb->lock);
        musb->board_mode = plat->mode;
@@ -1925,7 +1930,7 @@ bad_config:
                if (IS_ERR(musb->clock)) {
                        status = PTR_ERR(musb->clock);
                        musb->clock = NULL;
-                       goto fail;
+                       goto fail1;
                }
        }
 
@@ -1944,12 +1949,12 @@ bad_config:
         */
        musb->isr = generic_interrupt;
        status = musb_platform_init(musb);
-
        if (status < 0)
-               goto fail;
+               goto fail2;
+
        if (!musb->isr) {
                status = -ENODEV;
-               goto fail2;
+               goto fail3;
        }
 
 #ifndef CONFIG_MUSB_PIO_ONLY
@@ -1975,7 +1980,7 @@ bad_config:
                        ? MUSB_CONTROLLER_MHDRC
                        : MUSB_CONTROLLER_HDRC, musb);
        if (status < 0)
-               goto fail2;
+               goto fail3;
 
 #ifdef CONFIG_USB_MUSB_OTG
        setup_timer(&musb->otg_timer, musb_otg_timer_func, (unsigned long) musb);
@@ -1988,7 +1993,7 @@ bad_config:
        if (request_irq(nIrq, musb->isr, 0, dev_name(dev), musb)) {
                dev_err(dev, "request_irq %d failed!\n", nIrq);
                status = -ENODEV;
-               goto fail2;
+               goto fail3;
        }
        musb->nIrq = nIrq;
 /* FIXME this handles wakeup irqs wrong */
@@ -2050,12 +2055,12 @@ bad_config:
 
        }
        if (status < 0)
-               goto fail2;
+               goto fail3;
 
 #ifdef CONFIG_SYSFS
        status = sysfs_create_group(&musb->controller->kobj, &musb_attr_group);
        if (status)
-               goto fail2;
+               goto fail4;
 #endif
 
        dev_info(dev, "USB %s mode controller at %p using %s, IRQ %d\n",
@@ -2072,17 +2077,29 @@ bad_config:
 
        return 0;
 
-fail2:
+fail4:
+       if (!is_otg_enabled(musb) && is_host_enabled(musb))
+               usb_remove_hcd(musb_to_hcd(musb));
+       else
+               musb_gadget_cleanup(musb);
+
+fail3:
+       if (musb->irq_wake)
+               device_init_wakeup(dev, 0);
        musb_platform_exit(musb);
-fail:
-       dev_err(musb->controller,
-               "musb_init_controller failed with status %d\n", status);
 
+fail2:
        if (musb->clock)
                clk_put(musb->clock);
-       device_init_wakeup(dev, 0);
+
+fail1:
+       dev_err(musb->controller,
+               "musb_init_controller failed with status %d\n", status);
+
        musb_free(musb);
 
+fail0:
+
        return status;
 
 }