input: keyboard: rk_keys: allow work without any key defined

diff --git a/drivers/input/keyboard/rk_keys.c b/drivers/input/keyboard/rk_keys.c
index d70a3778714b65e7de02dcc94dfb6ba3e53359a9..9fc39010406e97bfea7c651858e995c20d273b3f 100755 (executable)
--- a/drivers/input/keyboard/rk_keys.c
+++ b/drivers/input/keyboard/rk_keys.c
@@ -247,7 +247,7 @@ static int rk_keys_parse_dt(struct rk_keys_drvdata *pdata,
        
        chan = iio_channel_get(&pdev->dev, NULL);
        if (IS_ERR(chan)) {
-               dev_info(&pdev->dev, "Missing io-channels\n");
+               dev_info(&pdev->dev, "no io-channels defined\n");
                chan = NULL;
        }
     pdata->chan = chan;
@@ -312,10 +312,8 @@ static int  keys_probe(struct platform_device *pdev)
        int wakeup, key_num = 0;
 
        key_num = of_get_child_count(np);
-       if (key_num == 0) {
-               error = -ENODEV;
-               return error;
-       }
+       if (key_num == 0)
+               dev_info(&pdev->dev, "no key defined\n");
 
     ddata = devm_kzalloc(dev, sizeof(struct rk_keys_drvdata) +
            key_num * sizeof(struct rk_keys_button),