power: supply: cw2015: use dev_err_probe to allow deferred probe

Deal with deferred probe using dev_err_probe so the error is handled
and avoid logging lots probe defer information like the following:

[    9.125121] cw2015 4-0062: Failed to register power supply
[    9.211131] cw2015 4-0062: Failed to register power supply

Fixes: b4c7715c10c1 ("power: supply: add CellWise cw2015 fuel gauge driver")
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

diff --git a/drivers/power/supply/cw2015_battery.c b/drivers/power/supply/cw2015_battery.c
index d110597..091868e 100644 (file)
--- a/drivers/power/supply/cw2015_battery.c
+++ b/drivers/power/supply/cw2015_battery.c
@@ -679,7 +679,9 @@ static int cw_bat_probe(struct i2c_client *client)
                                                    &cw2015_bat_desc,
                                                    &psy_cfg);
        if (IS_ERR(cw_bat->rk_bat)) {
-               dev_err(cw_bat->dev, "Failed to register power supply\n");
+               /* try again if this happens */
+               dev_err_probe(&client->dev, PTR_ERR(cw_bat->rk_bat),
+                       "Failed to register power supply\n");
                return PTR_ERR(cw_bat->rk_bat);
        }