[PATCH] i2c: mux: only print failure message on error

[Peter Rosin]

As is, a failure message is printed unconditionally, which is confusing.
And noisy.

Fixes: 8d4d159f25a7 ("i2c: mux: provide more info on failure in 
i2c_mux_add_adapter")
Signed-off-by: Peter Rosin <p...@axentia.se>
---
 drivers/i2c/i2c-mux.c | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c
index 26f7237558ba..ccf2ce1836c8 100644
--- a/drivers/i2c/i2c-mux.c
+++ b/drivers/i2c/i2c-mux.c
@@ -395,18 +395,22 @@ int i2c_mux_add_adapter(struct i2c_mux_core *muxc,
        if (force_nr) {
                priv->adap.nr = force_nr;
                ret = i2c_add_numbered_adapter(&priv->adap);
-               dev_err(&parent->dev,
-                       "failed to add mux-adapter %u as bus %u (error=%d)\n",
-                       chan_id, force_nr, ret);
+               if (ret < 0) {
+                       dev_err(&parent->dev,
+                               "failed to add mux-adapter %u as bus %u 
(error=%d)\n",
+                               chan_id, force_nr, ret);
+                       kfree(priv);
+                       return ret;
+               }
        } else {
                ret = i2c_add_adapter(&priv->adap);
-               dev_err(&parent->dev,
-                       "failed to add mux-adapter %u (error=%d)\n",
-                       chan_id, ret);
-       }
-       if (ret < 0) {
-               kfree(priv);
-               return ret;
+               if (ret < 0) {
+                       dev_err(&parent->dev,
+                               "failed to add mux-adapter %u (error=%d)\n",
+                               chan_id, ret);
+                       kfree(priv);
+                       return ret;
+               }
        }
 
        WARN(sysfs_create_link(&priv->adap.dev.kobj, &muxc->dev->kobj,
-- 
2.1.4