* [PATCH] i2c: mux: demux-pinctrl: invalidate properly when switching fails
@ 2016-08-22 14:52 Wolfram Sang
2016-08-25 16:47 ` Wolfram Sang
0 siblings, 1 reply; 2+ messages in thread
From: Wolfram Sang @ 2016-08-22 14:52 UTC (permalink / raw)
To: linux-i2c; +Cc: linux-renesas-soc, Wolfram Sang
Make sure the index to the active channel is invalidated when switching
fails.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
drivers/i2c/muxes/i2c-demux-pinctrl.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/i2c/muxes/i2c-demux-pinctrl.c b/drivers/i2c/muxes/i2c-demux-pinctrl.c
index 215ac87f606d2d..b6b9d2582fac56 100644
--- 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;
}
--
2.9.3
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2016-08-22 14:52 [PATCH] i2c: mux: demux-pinctrl: invalidate properly when switching fails Wolfram Sang
2016-08-25 16:47 ` Wolfram Sang
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