Some functions return err, rc or ret for a status code.
Return r instead for all of them.
Signed-off-by: Christophe Ricard <christophe-h.ricard@xxxxxx>
---
drivers/char/tpm/tpm_i2c_stm_st33.c | 103 ++++++++++++++++++------------------
1 file changed, 51 insertions(+), 52 deletions(-)
diff --git a/drivers/char/tpm/tpm_i2c_stm_st33.c b/drivers/char/tpm/tpm_i2c_stm_st33.c
index 098f881..b20f148 100644
--- a/drivers/char/tpm/tpm_i2c_stm_st33.c
+++ b/drivers/char/tpm/tpm_i2c_stm_st33.c
@@ -295,7 +295,7 @@ static int check_locality(struct tpm_chip *chip)
static int request_locality(struct tpm_chip *chip)
{
unsigned long stop;
- long rc;
+ long r;
struct tpm_stm_dev *tpm_dev;
u8 data;
@@ -305,15 +305,15 @@ static int request_locality(struct tpm_chip *chip)
return chip->vendor.locality;
data = TPM_ACCESS_REQUEST_USE;
- rc = I2C_WRITE_DATA(tpm_dev, TPM_ACCESS, &data, 1);
- if (rc < 0)
+ r = I2C_WRITE_DATA(tpm_dev, TPM_ACCESS, &data, 1);
+ if (r < 0)
goto end;
if (chip->vendor.irq) {
- rc = wait_for_serirq_timeout(chip, (check_locality
+ r = wait_for_serirq_timeout(chip, (check_locality
(chip) >= 0),
chip->vendor.timeout_a);
- if (rc > 0)
+ if (r > 0)
return chip->vendor.locality;
} else {
stop = jiffies + chip->vendor.timeout_a;
@@ -323,9 +323,9 @@ static int request_locality(struct tpm_chip *chip)
msleep(TPM_TIMEOUT);
} while (time_before(jiffies, stop));
}
- rc = -EACCES;
+ r = -EACCES;
end:
- return rc;
+ return r;
} /* request_locality() */
/*
@@ -392,14 +392,14 @@ static int wait_for_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout,
wait_queue_head_t *queue)
{
unsigned long stop;
- long rc;
+ long r;
u8 status;
if (chip->vendor.irq) {
- rc = wait_for_serirq_timeout(chip, ((tpm_stm_i2c_status
+ r = wait_for_serirq_timeout(chip, ((tpm_stm_i2c_status
(chip) & mask) ==
mask), timeout);
- if (rc > 0)
+ if (r > 0)
return 0;
} else {
stop = jiffies + timeout;
@@ -479,7 +479,7 @@ static int tpm_stm_i2c_send(struct tpm_chip *chip, unsigned char *buf,
{
u32 status, i, size;
int burstcnt = 0;
- int ret;
+ int r;
u8 data;
struct i2c_client *client;
struct tpm_stm_dev *tpm_dev;
@@ -494,9 +494,9 @@ static int tpm_stm_i2c_send(struct tpm_chip *chip, unsigned char *buf,
client->flags = 0;
- ret = request_locality(chip);
- if (ret < 0)
- return ret;
+ r = request_locality(chip);
+ if (r < 0)
+ return r;
status = tpm_stm_i2c_status(chip);
if ((status & TPM_STS_COMMAND_READY) == 0) {
@@ -504,7 +504,7 @@ static int tpm_stm_i2c_send(struct tpm_chip *chip, unsigned char *buf,
if (wait_for_stat
(chip, TPM_STS_COMMAND_READY, chip->vendor.timeout_b,
&chip->vendor.int_queue) < 0) {
- ret = -ETIME;
+ r = -ETIME;
goto out_err;
}
}
@@ -514,8 +514,8 @@ static int tpm_stm_i2c_send(struct tpm_chip *chip, unsigned char *buf,
if (burstcnt < 0)
return burstcnt;
size = min_t(int, len - i - 1, burstcnt);
- ret = I2C_WRITE_DATA(tpm_dev, TPM_DATA_FIFO, buf, size);
- if (ret < 0)
+ r = I2C_WRITE_DATA(tpm_dev, TPM_DATA_FIFO, buf, size);
+ if (r < 0)
goto out_err;
i += size;
@@ -523,17 +523,17 @@ static int tpm_stm_i2c_send(struct tpm_chip *chip, unsigned char *buf,
status = tpm_stm_i2c_status(chip);
if ((status & TPM_STS_DATA_EXPECT) == 0) {
- ret = -EIO;
+ r = -EIO;
goto out_err;
}
- ret = I2C_WRITE_DATA(tpm_dev, TPM_DATA_FIFO, buf + len - 1, 1);
- if (ret < 0)
+ r = I2C_WRITE_DATA(tpm_dev, TPM_DATA_FIFO, buf + len - 1, 1);
+ if (r < 0)
goto out_err;
status = tpm_stm_i2c_status(chip);
if ((status & TPM_STS_DATA_EXPECT) != 0) {
- ret = -EIO;
+ r = -EIO;
goto out_err;
}
@@ -544,7 +544,7 @@ static int tpm_stm_i2c_send(struct tpm_chip *chip, unsigned char *buf,
out_err:
tpm_stm_i2c_cancel(chip);
release_locality(chip);
- return ret;
+ return r;
}
/*
@@ -628,7 +628,7 @@ MODULE_PARM_DESC(power_mgt, "Power Management");
static int
tpm_st33_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
- int err;
+ int r;
u8 intmask;
struct tpm_chip *chip;
struct st33zp24_platform_data *platform_data;
@@ -637,13 +637,13 @@ tpm_st33_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
if (client == NULL) {
pr_info("%s: i2c client is NULL. Device not accessible.\n",
__func__);
- err = -ENODEV;
+ r = -ENODEV;
goto end;
}
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
dev_info(&client->dev, "client not i2c capable\n");
- err = -ENODEV;
+ r = -ENODEV;
goto end;
}
@@ -651,7 +651,7 @@ tpm_st33_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
GFP_KERNEL);
if (!tpm_dev) {
dev_info(&client->dev, "cannot allocate memory for tpm data\n");
- err = -ENOMEM;
+ r = -ENOMEM;
goto _tpm_clean_answer;
}
@@ -659,7 +659,7 @@ tpm_st33_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
if (!platform_data) {
dev_info(&client->dev, "chip not available\n");
- err = -ENODEV;
+ r = -ENODEV;
goto _tpm_clean_answer;
}
@@ -680,8 +680,8 @@ tpm_st33_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
chip->vendor.locality = LOCALITY0;
if (power_mgt) {
- err = gpio_request(platform_data->io_lpcpd, "TPM IO_LPCPD");
- if (err)
+ r = gpio_request(platform_data->io_lpcpd, "TPM IO_LPCPD");
+ if (r)
goto _gpio_init1;
gpio_set_value(platform_data->io_lpcpd, 1);
}
@@ -689,26 +689,26 @@ tpm_st33_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
if (interrupts) {
init_completion(&tpm_dev->irq_detection);
if (request_locality(chip) != LOCALITY0) {
- err = -ENODEV;
+ r = -ENODEV;
goto _tpm_clean_answer;
}
- err = gpio_request(platform_data->io_serirq, "TPM IO_SERIRQ");
- if (err)
+ r = gpio_request(platform_data->io_serirq, "TPM IO_SERIRQ");
+ if (r)
goto _gpio_init2;
clear_interruption(tpm_dev);
- err = request_irq(gpio_to_irq(platform_data->io_serirq),
+ r = request_irq(gpio_to_irq(platform_data->io_serirq),
&tpm_ioserirq_handler,
IRQF_TRIGGER_HIGH,
"TPM SERIRQ management", chip);
- if (err < 0) {
+ if (r < 0) {
dev_err(chip->dev , "TPM SERIRQ signals %d not available\n",
gpio_to_irq(platform_data->io_serirq));
goto _irq_set;
}
- err = I2C_READ_DATA(tpm_dev, TPM_INT_ENABLE, &intmask, 1);
- if (err < 0)
+ r = I2C_READ_DATA(tpm_dev, TPM_INT_ENABLE, &intmask, 1);
+ if (r < 0)
goto _irq_set;
intmask |= TPM_INTF_CMD_READY_INT
@@ -718,17 +718,17 @@ tpm_st33_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
| TPM_INTF_STS_VALID_INT
| TPM_INTF_DATA_AVAIL_INT;
- err = I2C_WRITE_DATA(tpm_dev, TPM_INT_ENABLE, &intmask, 1);
- if (err < 0)
+ r = I2C_WRITE_DATA(tpm_dev, TPM_INT_ENABLE, &intmask, 1);
+ if (r < 0)
goto _irq_set;
intmask = TPM_GLOBAL_INT_ENABLE;
- err = I2C_WRITE_DATA(tpm_dev, (TPM_INT_ENABLE + 3), &intmask, 1);
- if (err < 0)
+ r = I2C_WRITE_DATA(tpm_dev, (TPM_INT_ENABLE + 3), &intmask, 1);
+ if (r < 0)
goto _irq_set;
- err = I2C_READ_DATA(tpm_dev, TPM_INT_STATUS, &intmask, 1);
- if (err < 0)
+ r = I2C_READ_DATA(tpm_dev, TPM_INT_STATUS, &intmask, 1);
+ if (r < 0)
goto _irq_set;
chip->vendor.irq = interrupts;
@@ -753,7 +753,7 @@ _tpm_clean_answer:
tpm_remove_hardware(chip->dev);
end:
pr_info("TPM I2C initialisation fail\n");
- return err;
+ return r;
}
/*
@@ -783,14 +783,13 @@ static int tpm_st33_i2c_remove(struct i2c_client *client)
static int tpm_st33_i2c_pm_suspend(struct device *dev)
{
struct st33zp24_platform_data *pin_infos = dev->platform_data;
- int ret = 0;
+ int r = 0;
if (power_mgt)
gpio_set_value(pin_infos->io_lpcpd, 0);
else
- ret = tpm_pm_suspend(dev);
-
- return ret;
+ r = tpm_pm_suspend(dev);
+ return r;
} /* tpm_st33_i2c_suspend() */
/*
@@ -803,20 +802,20 @@ static int tpm_st33_i2c_pm_resume(struct device *dev)
struct tpm_chip *chip = dev_get_drvdata(dev);
struct st33zp24_platform_data *pin_infos = dev->platform_data;
- int ret = 0;
+ int r = 0;
if (power_mgt) {
gpio_set_value(pin_infos->io_lpcpd, 1);
- ret = wait_for_serirq_timeout(chip,
+ r = wait_for_serirq_timeout(chip,
(chip->ops->status(chip) &
TPM_STS_VALID) == TPM_STS_VALID,
chip->vendor.timeout_b);
} else {
- ret = tpm_pm_resume(dev);
- if (!ret)
+ r = tpm_pm_resume(dev);
+ if (!r)
tpm_do_selftest(chip);
}
- return ret;
+ return r;
} /* tpm_st33_i2c_pm_resume() */
#endif
--
1.9.1
--
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