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| author | Jean Delvare <khali@linux-fr.org> | 2005-06-04 13:17:43 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-06-21 21:52:03 -0700 |
| commit | eb071cbbc38efa4b1d707f540de2ec6283ab0894 (patch) | |
| tree | dd9037caf6acb546abe76f76d60987b8d870a1e4 /drivers/i2c/chips/pcf8574.c | |
| parent | 5d740fe9fefda41292b5cabe70f4f8eff9f8aad0 (diff) | |
| download | blackbird-op-linux-eb071cbbc38efa4b1d707f540de2ec6283ab0894.tar.gz blackbird-op-linux-eb071cbbc38efa4b1d707f540de2ec6283ab0894.zip | |
[PATCH] I2C: pcf8574 driver cleanup
I found a possible cleanup in the pcf8574 driver. We don't need to store
the read value in our private data structure, as we then never use it
again. I asked Aurelien and he is fine with the change. Please apply,
thanks.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/i2c/chips/pcf8574.c')
| -rw-r--r-- | drivers/i2c/chips/pcf8574.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/i2c/chips/pcf8574.c b/drivers/i2c/chips/pcf8574.c index 4956e9effd75..cfcf64654080 100644 --- a/drivers/i2c/chips/pcf8574.c +++ b/drivers/i2c/chips/pcf8574.c @@ -57,7 +57,7 @@ SENSORS_INSMOD_2(pcf8574, pcf8574a); struct pcf8574_data { struct i2c_client client; - u8 read, write; /* Register values */ + u8 write; /* Remember last written value */ }; static int pcf8574_attach_adapter(struct i2c_adapter *adapter); @@ -79,9 +79,7 @@ static struct i2c_driver pcf8574_driver = { static ssize_t show_read(struct device *dev, struct device_attribute *attr, char *buf) { struct i2c_client *client = to_i2c_client(dev); - struct pcf8574_data *data = i2c_get_clientdata(client); - data->read = i2c_smbus_read_byte(client); - return sprintf(buf, "%u\n", data->read); + return sprintf(buf, "%u\n", i2c_smbus_read_byte(client)); } static DEVICE_ATTR(read, S_IRUGO, show_read, NULL); |
