usb: chipidea: usbmisc: unset global varibale usbmisc on driver remove

The probe function checks usbmisc to be NULL in the beginning. Without
this patch the can only be loaded once.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
index 3c424469c7a5a2c854e537b6574423794ab733fe..fd4d3392125f43e551881258f5cdb8391d249417 100644 (file)
--- a/drivers/usb/chipidea/usbmisc_imx.c
+++ b/drivers/usb/chipidea/usbmisc_imx.c
@@ -131,6 +131,7 @@ static int usbmisc_imx_remove(struct platform_device *pdev)
 {
        usbmisc_unset_ops(&imx6q_usbmisc_ops);
        clk_disable_unprepare(usbmisc->clk);
+       usbmisc = NULL;
        return 0;
 }