Variable ar assigned a value that is never used.
I have also removed all the code that thereby serves no purpose.
This was found using a static code analysis program called cppcheck
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@xxxxxxxxxxxxxxxxxx>
---
drivers/staging/cptm1217/clearpad_tm1217.c | 35 +++++++++++++---------------
1 file changed, 16 insertions(+), 19 deletions(-)
diff --git a/drivers/staging/cptm1217/clearpad_tm1217.c b/drivers/staging/cptm1217/clearpad_tm1217.c
index 7f265ce..444d86b 100644
--- a/drivers/staging/cptm1217/clearpad_tm1217.c
+++ b/drivers/staging/cptm1217/clearpad_tm1217.c
@@ -320,45 +320,44 @@ exit_thread:
static int cp_tm1217_init_data(struct cp_tm1217_device *ts)
{
- int retval;
u8 req[2];
/* Read the vendor id/ fw revision etc. Ignoring return check as this
is non critical info */
req[0] = TMA1217_MANUFACTURER_ID;
- retval = cp_tm1217_read(ts, req, 1);
+ cp_tm1217_read(ts, req, 1);
ts->vinfo.vendor_id = req[1];
req[0] = TMA1217_PRODUCT_FAMILY;
- retval = cp_tm1217_read(ts, req, 1);
+ cp_tm1217_read(ts, req, 1);
ts->vinfo.product_family = req[1];
req[0] = TMA1217_FIRMWARE_REVISION;
- retval = cp_tm1217_read(ts, req, 1);
+ cp_tm1217_read(ts, req, 1);
ts->vinfo.firmware_rev = req[1];
req[0] = TMA1217_SERIAL_NO_HIGH;
- retval = cp_tm1217_read(ts, req, 1);
+ cp_tm1217_read(ts, req, 1);
ts->vinfo.serial_no = (req[1] << 8);
req[0] = TMA1217_SERIAL_NO_LOW;
- retval = cp_tm1217_read(ts, req, 1);
+ cp_tm1217_read(ts, req, 1);
ts->vinfo.serial_no = ts->vinfo.serial_no | req[1];
req[0] = TMA1217_MAX_X_HIGHER4;
- retval = cp_tm1217_read(ts, req, 1);
+ cp_tm1217_read(ts, req, 1);
ts->dinfo.maxX = (req[1] & 0xF) << 8;
req[0] = TMA1217_MAX_X_LOWER8;
- retval = cp_tm1217_read(ts, req, 1);
+ cp_tm1217_read(ts, req, 1);
ts->dinfo.maxX = ts->dinfo.maxX | req[1];
req[0] = TMA1217_MAX_Y_HIGHER4;
- retval = cp_tm1217_read(ts, req, 1);
+ cp_tm1217_read(ts, req, 1);
ts->dinfo.maxY = (req[1] & 0xF) << 8;
req[0] = TMA1217_MAX_Y_LOWER8;
- retval = cp_tm1217_read(ts, req, 1);
+ cp_tm1217_read(ts, req, 1);
ts->dinfo.maxY = ts->dinfo.maxY | req[1];
return 0;
@@ -563,13 +562,12 @@ static int cp_tm1217_suspend(struct device *dev)
struct i2c_client *client = to_i2c_client(dev);
struct cp_tm1217_device *ts = i2c_get_clientdata(client);
u8 req[2];
- int retval;
/* Put the controller to sleep */
req[0] = TMA1217_DEVICE_CTRL;
- retval = cp_tm1217_read(ts, req, 1);
+ cp_tm1217_read(ts, req, 1);
req[1] = (req[1] & 0xF8) | 0x1;
- retval = cp_tm1217_write(ts, req, 1);
+ cp_tm1217_write(ts, req, 1);
if (device_may_wakeup(&client->dev))
enable_irq_wake(client->irq);
@@ -586,13 +584,12 @@ static int cp_tm1217_resume(struct device *dev)
struct i2c_client *client = to_i2c_client(dev);
struct cp_tm1217_device *ts = i2c_get_clientdata(client);
u8 req[2];
- int retval;
/* Take the controller out of sleep */
req[0] = TMA1217_DEVICE_CTRL;
- retval = cp_tm1217_read(ts, req, 1);
+ cp_tm1217_read(ts, req, 1);
req[1] = (req[1] & 0xF8) | 0x4;
- retval = cp_tm1217_write(ts, req, 1);
+ cp_tm1217_write(ts, req, 1);
/* Restore the register settings sinc the power to the
could have been cut off */
@@ -601,15 +598,15 @@ static int cp_tm1217_resume(struct device *dev)
finger arrives or departs. */
req[0] = TMA1217_REPORT_MODE;
req[1] = 0x02;
- retval = cp_tm1217_write(ts, req, 1);
+ cp_tm1217_write(ts, req, 1);
/* Setup the device to no sleep mode for now and make it configured */
req[0] = TMA1217_DEVICE_CTRL;
req[1] = 0x84;
- retval = cp_tm1217_write(ts, req, 1);
+ cp_tm1217_write(ts, req, 1);
/* Setup the interrupt mask */
- retval = cp_tm1217_unmask_interrupt(ts);
+ cp_tm1217_unmask_interrupt(ts);
if (device_may_wakeup(&client->dev))
disable_irq_wake(client->irq);
--
1.7.10.4
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