tpm/tpm_i2c_stm_st33: Few code cleanup

Cleanup code indentation, braces, test variable when NULL.
Reviewed-by: NJason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: NChristophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: NPeter Huewe <peterhuewe@gmx.de>

drivers/char/tpm/tpm_i2c_stm_st33.c

@@ -26,7 +26,7 @@
  *
  * @Synopsis:
  *	09/15/2010:	First shot driver tpm_tis driver for
-			 lpc is used as model.
+ *			 lpc is used as model.
  */
 
 #include <linux/pci.h>
@@ -393,7 +393,7 @@ static int wait_for_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout,
 	long ret;
 	u8 status;
 
-	 if (chip->vendor.irq) {
+	if (chip->vendor.irq) {
 		ret = wait_for_serirq_timeout(chip, ((tpm_stm_i2c_status
 							(chip) & mask) ==
 						       mask), timeout);
@@ -429,8 +429,7 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
 	       wait_for_stat(chip,
 			     TPM_STS_DATA_AVAIL | TPM_STS_VALID,
 			     chip->vendor.timeout_c,
-			     &chip->vendor.read_queue)
-	       == 0) {
+			     &chip->vendor.read_queue) == 0) {
 		burstcnt = get_burstcount(chip);
 		if (burstcnt < 0)
 			return burstcnt;
@@ -482,7 +481,7 @@ static int tpm_stm_i2c_send(struct tpm_chip *chip, unsigned char *buf,
 	struct i2c_client *client;
 	struct tpm_stm_dev *tpm_dev;
 
-	if (chip == NULL)
+	if (!chip)
 		return -EBUSY;
 	if (len < TPM_HEADER_SIZE)
 		return -EBUSY;
@@ -559,7 +558,7 @@ static int tpm_stm_i2c_recv(struct tpm_chip *chip, unsigned char *buf,
 	int size = 0;
 	int expected;
 
-	if (chip == NULL)
+	if (!chip)
 		return -EBUSY;
 
 	if (count < TPM_HEADER_SIZE) {
@@ -580,7 +579,7 @@ static int tpm_stm_i2c_recv(struct tpm_chip *chip, unsigned char *buf,
 	}
 
 	size += recv_data(chip, &buf[TPM_HEADER_SIZE],
-					expected - TPM_HEADER_SIZE);
+			expected - TPM_HEADER_SIZE);
 	if (size < expected) {
 		dev_err(chip->dev, "Unable to read remainder of result\n");
 		size = -ETIME;
@@ -662,9 +661,9 @@ static int tpm_stm_i2c_request_resources(struct i2c_client *client,
 	int ret;
 
 	pdata = client->dev.platform_data;
-	if (pdata == NULL) {
-		pr_err("No platform data\n");
-		return -EINVAL;
+	if (!pdata) {
+		dev_err(chip->dev, "No platform data\n");
+		return -ENODEV;
 	}
 
 	/* store for late use */
@@ -695,13 +694,13 @@ static int
 tpm_stm_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
 	int ret;
-	u8 intmask;
+	u8 intmask = 0;
 	struct tpm_chip *chip;
 	struct st33zp24_platform_data *platform_data;
 	struct tpm_stm_dev *tpm_dev;
 
-	if (client == NULL) {
-		pr_info("%s: i2c client is NULL. Device not accessible.\n",
+	if (!client) {
+		dev_info(&client->dev, "%s: i2c client is NULL. Device not accessible.\n",
 			__func__);
 		return -ENODEV;
 	}
@@ -805,7 +804,7 @@ tpm_stm_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
 /*
  * tpm_stm_i2c_remove remove the TPM device
  * @param: client, the i2c_client drescription (TPM I2C description).
-		clear_bit(0, &chip->is_open);
+ *		clear_bit(0, &chip->is_open);
  * @return: 0 in case of success.
  */
 static int tpm_stm_i2c_remove(struct i2c_client *client)
@@ -835,6 +834,7 @@ static int tpm_stm_i2c_pm_suspend(struct device *dev)
 		gpio_set_value(pin_infos->io_lpcpd, 0);
 	else
 		ret = tpm_pm_suspend(dev);
+
 	return ret;
 }				/* tpm_stm_i2c_suspend() */
 
@@ -869,6 +869,7 @@ static const struct i2c_device_id tpm_stm_i2c_id[] = {
 	{TPM_ST33_I2C, 0},
 	{}
 };
+MODULE_DEVICE_TABLE(i2c, tpm_stm_i2c_id);
 
 #ifdef CONFIG_OF
 static const struct of_device_id of_st33zp24_i2c_match[] = {
@@ -878,7 +879,6 @@ static const struct of_device_id of_st33zp24_i2c_match[] = {
 MODULE_DEVICE_TABLE(of, of_st33zp24_i2c_match);
 #endif
 
-MODULE_DEVICE_TABLE(i2c, tpm_stm_i2c_id);
 static SIMPLE_DEV_PM_OPS(tpm_stm_i2c_ops, tpm_stm_i2c_pm_suspend,
 	tpm_stm_i2c_pm_resume);
 static struct i2c_driver tpm_stm_i2c_driver = {
@@ -887,7 +887,7 @@ static struct i2c_driver tpm_stm_i2c_driver = {
 		.name = TPM_ST33_I2C,
 		.pm = &tpm_stm_i2c_ops,
 		.of_match_table = of_match_ptr(of_st33zp24_i2c_match),
-		   },
+	},
 	.probe = tpm_stm_i2c_probe,
 	.remove = tpm_stm_i2c_remove,
 	.id_table = tpm_stm_i2c_id