[PATCH v2 4/4] pinctrl: rockchip: fix pinmux reset in rockchip_pmx_set

[Huang-Huang Bao <i@eh5.me>]

rockchip_pmx_set reset all pinmuxs in group to 0 in the case of error,
add missing bank data retrieval in that code to avoid setting mux on
unexpected pins.

Fixes: 14797189b35e ("pinctrl: rockchip: add return value to rockchip_set_mux")
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Huang-Huang Bao <i@eh5.me>
---
 drivers/pinctrl/pinctrl-rockchip.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 24ee88863ce3..3f56991f5b89 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2751,8 +2751,10 @@ static int rockchip_pmx_set(struct pinctrl_dev *pctldev, unsigned selector,
 
 	if (ret) {
 		/* revert the already done pin settings */
-		for (cnt--; cnt >= 0; cnt--)
+		for (cnt--; cnt >= 0; cnt--) {
+			bank = pin_to_bank(info, pins[cnt]);
 			rockchip_set_mux(bank, pins[cnt] - bank->pin_base, 0);
+		}
 
 		return ret;
 	}
-- 
2.45.2