[PATCH] usb: cdns3: Error out if USB_DR_MODE_UNKNOWN in cdns3_core_init_role()

[Roger Quadros]

USB_DR_MODE_UNKNOWN should be treated as error as it is done in
cdns3_drd_update_mode().

Fixes: 02ffc26df96b ("usb: cdns3: fix cdns3_core_init_role()")
Signed-off-by: Roger Quadros <rog...@ti.com>
---
 drivers/usb/cdns3/core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c
index 1109dc5a4c39..c2123ef8d8a3 100644
--- a/drivers/usb/cdns3/core.c
+++ b/drivers/usb/cdns3/core.c
@@ -166,7 +166,6 @@ static int cdns3_core_init_role(struct cdns3 *cdns)
                goto err;
 
        switch (cdns->dr_mode) {
-       case USB_DR_MODE_UNKNOWN:
        case USB_DR_MODE_OTG:
                ret = cdns3_hw_role_switch(cdns);
                if (ret)
@@ -182,6 +181,9 @@ static int cdns3_core_init_role(struct cdns3 *cdns)
                if (ret)
                        goto err;
                break;
+       default:
+               ret = -EINVAL;
+               goto err;
        }
 
        return ret;
-- 
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