usb: musb: mediatek: don't unregister something that wasn't registered

[ Upstream commit ba883de971d1ad018f3083d9195b8abe54d87407 ]

This function only calls mtk_otg_switch_init() when the ->port_mode
is MUSB_OTG so the clean up code should only call mtk_otg_switch_exit()
for that mode.

Fixes: 0990366bab3c ("usb: musb: Add support for MediaTek musb controller")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/Y8/3TqpqiSr0RxFH@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/usb/musb/mediatek.c b/drivers/usb/musb/mediatek.c
index cad9913..27b9bd2 100644 (file)
--- a/drivers/usb/musb/mediatek.c
+++ b/drivers/usb/musb/mediatek.c
@@ -294,7 +294,8 @@ static int mtk_musb_init(struct musb *musb)
 err_phy_power_on:
        phy_exit(glue->phy);
 err_phy_init:
-       mtk_otg_switch_exit(glue);
+       if (musb->port_mode == MUSB_OTG)
+               mtk_otg_switch_exit(glue);
        return ret;
 }