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path: root/drivers/misc/isl29003.c
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Diffstat (limited to 'drivers/misc/isl29003.c')
-rw-r--r--drivers/misc/isl29003.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/misc/isl29003.c b/drivers/misc/isl29003.c
index 976df0013633..b8032882c865 100644
--- a/drivers/misc/isl29003.c
+++ b/drivers/misc/isl29003.c
@@ -78,6 +78,7 @@ static int __isl29003_read_reg(struct i2c_client *client,
u32 reg, u8 mask, u8 shift)
{
struct isl29003_data *data = i2c_get_clientdata(client);
+
return (data->reg_cache[reg] & mask) >> shift;
}
@@ -160,6 +161,7 @@ static int isl29003_get_power_state(struct i2c_client *client)
{
struct isl29003_data *data = i2c_get_clientdata(client);
u8 cmdreg = data->reg_cache[ISL29003_REG_COMMAND];
+
return ~cmdreg & ISL29003_ADC_PD;
}
@@ -196,6 +198,7 @@ static ssize_t isl29003_show_range(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct i2c_client *client = to_i2c_client(dev);
+
return sprintf(buf, "%i\n", isl29003_get_range(client));
}
@@ -231,6 +234,7 @@ static ssize_t isl29003_show_resolution(struct device *dev,
char *buf)
{
struct i2c_client *client = to_i2c_client(dev);
+
return sprintf(buf, "%d\n", isl29003_get_resolution(client));
}
@@ -264,6 +268,7 @@ static ssize_t isl29003_show_mode(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct i2c_client *client = to_i2c_client(dev);
+
return sprintf(buf, "%d\n", isl29003_get_mode(client));
}
@@ -298,6 +303,7 @@ static ssize_t isl29003_show_power_state(struct device *dev,
char *buf)
{
struct i2c_client *client = to_i2c_client(dev);
+
return sprintf(buf, "%d\n", isl29003_get_power_state(client));
}
@@ -361,6 +367,7 @@ static int isl29003_init_client(struct i2c_client *client)
* if one of the reads fails, we consider the init failed */
for (i = 0; i < ARRAY_SIZE(data->reg_cache); i++) {
int v = i2c_smbus_read_byte_data(client, i);
+
if (v < 0)
return -ENODEV;