i2c: mux: demux-pinctrl: invalidate properly when switching fails

Make sure the index to the active channel is invalidated when switching
fails.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

diff --git a/drivers/i2c/muxes/i2c-demux-pinctrl.c b/drivers/i2c/muxes/i2c-demux-pinctrl.c
index 215ac87..b6b9d25 100644 (file)
--- a/drivers/i2c/muxes/i2c-demux-pinctrl.c
+++ b/drivers/i2c/muxes/i2c-demux-pinctrl.c
@@ -107,6 +107,7 @@ static int i2c_demux_activate_master(struct i2c_demux_pinctrl_priv *priv, u32 ne
        of_changeset_revert(&priv->chan[new_chan].chgset);
  err:
        dev_err(priv->dev, "failed to setup demux-adapter %d (%d)\n", new_chan, ret);
+       priv->cur_chan = -EINVAL;
        return ret;
 }