staging: pi433: remove multiple blank lines

Fixes checkpatch warning for multiple blank lines in source.
Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/pi433/pi433_if.c

@@ -54,7 +54,6 @@
 #include "pi433_if.h"
 #include "rf69.h"
 
-
 #define N_PI433_MINORS			(1U << MINORBITS) /*32*/	/* ... up to 256 */
 #define MAX_MSG_SIZE			900	/* min: FIFO_SIZE! */
 #define MSG_FIFO_SIZE			65536   /* 65536 = 2^16  */
@@ -119,7 +118,6 @@ struct pi433_instance {
 	struct pi433_tx_cfg	tx_cfg;
 };
 
-
 /*-------------------------------------------------------------------------*/
 
 /* GPIO interrupt handlers */
@@ -406,7 +404,6 @@ pi433_start_rx(struct pi433_device *dev)
 	return 0;
 }
 
-
 /*-------------------------------------------------------------------------*/
 
 static int
@@ -526,7 +523,6 @@ pi433_receive(void *data)
 		else
 			bytes_to_read = bytes_total - dev->rx_position;
 
-
 		/* access the fifo */
 		if (bytes_to_read > FIFO_SIZE - dev->free_in_fifo)
 			bytes_to_read = FIFO_SIZE - dev->free_in_fifo;
@@ -545,7 +541,6 @@ pi433_receive(void *data)
 			dev->rx_position += bytes_to_read;
 	}
 
-
 	/* rx done, wait was interrupted or error occurred */
 abort:
 	dev->interrupt_rx_allowed = true;
@@ -737,7 +732,6 @@ pi433_tx_thread(void *data)
 		if (kthread_should_stop())
 			printk("ABORT\n");
 
-
 		/* STOP_TRANSMISSION */
 		dev_dbg(device->dev, "thread: Packet sent. Set mode to stby.");
 		retval = rf69_set_mode(spi, standby);
@@ -804,7 +798,6 @@ pi433_read(struct file *filp, char __user *buf, size_t size, loff_t *f_pos)
 	return bytes_received;
 }
 
-
 static ssize_t
 pi433_write(struct file *filp, const char __user *buf,
 		size_t count, loff_t *f_pos)
@@ -854,7 +847,6 @@ pi433_write(struct file *filp, const char __user *buf,
 	return -EAGAIN;
 }
 
-
 static long
 pi433_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
@@ -992,7 +984,6 @@ static int pi433_release(struct inode *inode, struct file *filp)
 	return 0;
 }
 
-
 /*-------------------------------------------------------------------------*/
 
 static int setup_GPIOs(struct pi433_device *device)
@@ -1028,14 +1019,12 @@ static int setup_GPIOs(struct pi433_device *device)
 			return retval;
 		}
 
-
 		/* configure the pin */
 		gpiod_unexport(device->gpiod[i]);
 		retval = gpiod_direction_input(device->gpiod[i]);
 		if (retval)
 			return retval;
 
-
 		/* configure irq */
 		device->irq_num[i] = gpiod_to_irq(device->gpiod[i]);
 		if (device->irq_num[i] < 0) {

drivers/staging/pi433/pi433_if.h

@@ -32,9 +32,6 @@
 #include <linux/types.h>
 #include "rf69_enum.h"
 
-/*---------------------------------------------------------------------------*/
-
-
 /*---------------------------------------------------------------------------*/
 
 enum option_on_off {
@@ -76,7 +73,6 @@ struct pi433_tx_cfg {
 
 	__u16			repetitions;
 
-
 	/* packet format */
 	enum option_on_off	enable_preamble;
 	enum option_on_off	enable_sync;
@@ -92,7 +88,6 @@ struct pi433_tx_cfg {
 	__u8			address_byte;
 };
 
-
 /**
  * struct pi433_rx_config - describes the configuration of the radio module for sending
  * @frequency:
@@ -127,8 +122,6 @@ struct pi433_rx_cfg {
 	__u8			bw_exponent;	/* during AFC: 0x8b */
 	enum dagc		dagc;
 
-
-
 	/* packet format */
 	enum option_on_off	enable_sync;
 	enum option_on_off	enable_length_byte;	  /* should be used in combination with sync, only */
@@ -144,7 +137,6 @@ struct pi433_rx_cfg {
 	__u8			broadcast_address;
 };
 
-
 #define PI433_IOC_MAGIC			'r'
 
 #define PI433_IOC_RD_TX_CFG	_IOR(PI433_IOC_MAGIC, PI433_TX_CFG_IOCTL_NR, char[sizeof(struct pi433_tx_cfg)])

drivers/staging/pi433/rf69.h

@@ -78,6 +78,4 @@ int rf69_write_fifo(struct spi_device *spi, u8 *buffer, unsigned int size);
 
 u8  rf69_read_reg(struct spi_device *spi, u8 addr);
 int rf69_write_reg(struct spi_device *spi, u8 addr, u8 value);
-
-
 #endif

drivers/staging/pi433/rf69_registers.h

@@ -188,8 +188,6 @@
 #define  MASK_PALEVEL_PA2			0x20
 #define  MASK_PALEVEL_OUTPUT_POWER		0x1F
 
-
-
 // RegPaRamp
 #define  PARAMP_3400				0x00
 #define  PARAMP_2000				0x01
@@ -246,7 +244,6 @@
 #define  LNA_GAIN_MAX_MINUS_36			0x05
 #define  LNA_GAIN_MAX_MINUS_48			0x06
 
-
 /* RegRxBw (0x19) and RegAfcBw (0x1A) */
 #define  MASK_BW_DCC_FREQ			0xE0
 #define  MASK_BW_MANTISSE			0x18
@@ -265,7 +262,6 @@
 #define  BW_MANT_20				0x08
 #define  BW_MANT_24				0x10 /* default */
 
-
 /* RegOokPeak (0x1B) */
 #define  MASK_OOKPEAK_THRESTYPE			0xc0
 #define  MASK_OOKPEAK_THRESSTEP			0x38