USB: musb: fix put_device() call sequence

Invoke put_device(musb->xceiv->dev) before musb_platform_exit()as
xceiv is getting unregistered in musb_platform_exit().

Fixes put_device() panic when module insert/removal is performed
multiple times.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
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 1d26bed..3a61ddb 100644 (file)
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1850,6 +1850,10 @@ static void musb_free(struct musb *musb)
                dma_controller_destroy(c);
        }
 
+#ifdef CONFIG_USB_MUSB_OTG
+       put_device(musb->xceiv->dev);
+#endif
+
        musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
        musb_platform_exit(musb);
        musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
@@ -1859,10 +1863,6 @@ static void musb_free(struct musb *musb)
                clk_put(musb->clock);
        }
 
-#ifdef CONFIG_USB_MUSB_OTG
-       put_device(musb->xceiv->dev);
-#endif
-
 #ifdef CONFIG_USB_MUSB_HDRC_HCD
        usb_put_hcd(musb_to_hcd(musb));
 #else