]> Pileus Git - ~andy/linux/blobdiff - drivers/leds/leds-lp5521.c
musb: tusb6010: use io{read,write}*_rep accessors
[~andy/linux] / drivers / leds / leds-lp5521.c
index 2064aefedc0707fd7a6d78e85ded09dd441113a0..cb8a5220200b37bd10a0df71f04783175e3697d7 100644 (file)
@@ -152,7 +152,7 @@ static int lp5521_read(struct i2c_client *client, u8 reg, u8 *buf)
 
        ret = i2c_smbus_read_byte_data(client, reg);
        if (ret < 0)
-               return -EIO;
+               return ret;
 
        *buf = ret;
        return 0;
@@ -616,7 +616,7 @@ static ssize_t store_led_pattern(struct device *dev,
        unsigned long val;
        int ret;
 
-       ret = strict_strtoul(buf, 16, &val);
+       ret = kstrtoul(buf, 16, &val);
        if (ret)
                return ret;
 
@@ -687,7 +687,7 @@ static void lp5521_unregister_sysfs(struct i2c_client *client)
                                &lp5521_led_attribute_group);
 }
 
-static int __devinit lp5521_init_led(struct lp5521_led *led,
+static int lp5521_init_led(struct lp5521_led *led,
                                struct i2c_client *client,
                                int chan, struct lp5521_platform_data *pdata)
 {
@@ -736,7 +736,7 @@ static int __devinit lp5521_init_led(struct lp5521_led *led,
        return 0;
 }
 
-static int __devinit lp5521_probe(struct i2c_client *client,
+static int lp5521_probe(struct i2c_client *client,
                        const struct i2c_device_id *id)
 {
        struct lp5521_chip              *chip;
@@ -788,10 +788,17 @@ static int __devinit lp5521_probe(struct i2c_client *client,
         * LP5521_REG_ENABLE register will not have any effect - strange!
         */
        ret = lp5521_read(client, LP5521_REG_R_CURRENT, &buf);
-       if (ret || buf != LP5521_REG_R_CURR_DEFAULT) {
+       if (ret) {
                dev_err(&client->dev, "error in resetting chip\n");
                goto fail2;
        }
+       if (buf != LP5521_REG_R_CURR_DEFAULT) {
+               dev_err(&client->dev,
+                       "unexpected data in register (expected 0x%x got 0x%x)\n",
+                       LP5521_REG_R_CURR_DEFAULT, buf);
+               ret = -EINVAL;
+               goto fail2;
+       }
        usleep_range(10000, 20000);
 
        ret = lp5521_detect(client);
@@ -855,7 +862,7 @@ fail1:
        return ret;
 }
 
-static int __devexit lp5521_remove(struct i2c_client *client)
+static int lp5521_remove(struct i2c_client *client)
 {
        struct lp5521_chip *chip = i2c_get_clientdata(client);
        int i;
@@ -886,7 +893,7 @@ static struct i2c_driver lp5521_driver = {
                .name   = "lp5521",
        },
        .probe          = lp5521_probe,
-       .remove         = __devexit_p(lp5521_remove),
+       .remove         = lp5521_remove,
        .id_table       = lp5521_id,
 };