gpio: fix probe() error return in gpio driver probes

[linux-2.6-omap-h63xx.git] / drivers / gpio / pcf857x.c

diff --git a/drivers/gpio/pcf857x.c b/drivers/gpio/pcf857x.c
index 4bc2070dd4a1010b498d63b96926e0cdbec69111..9525724be731d400f781a36e2354c76b8c5ff699 100644 (file)
--- a/drivers/gpio/pcf857x.c
+++ b/drivers/gpio/pcf857x.c
@@ -188,8 +188,10 @@ static int pcf857x_probe(struct i2c_client *client,
        int                             status;
 
        pdata = client->dev.platform_data;
-       if (!pdata)
-               return -ENODEV;
+       if (!pdata) {
+               dev_dbg(&client->dev, "no platform data\n");
+               return -EINVAL;
+       }
 
        /* Allocate, initialize, and register this gpio_chip. */
        gpio = kzalloc(sizeof *gpio, GFP_KERNEL);
@@ -248,8 +250,10 @@ static int pcf857x_probe(struct i2c_client *client,
                else
                        status = i2c_read_le16(client);
 
-       } else
-               status = -ENODEV;
+       } else {
+               dev_dbg(&client->dev, "unsupported number of gpios\n");
+               status = -EINVAL;
+       }
 
        if (status < 0)
                goto fail;