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Date:   Sat, 7 Oct 2017 22:28:51 +0200 (CEST)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     Srishti Sharma <srishtishar@...il.com>
cc:     gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org, outreachy-kernel@...glegroups.com
Subject: Re: [Outreachy kernel] [PATCH v2] Staging: pi433: Fix the position
 of brace after if



On Sun, 8 Oct 2017, Srishti Sharma wrote:

> Fix the position of the brace after if when it is on the next line.
> Done using the following semantic patch by coccinelle.
>
> @r1@
> position p1, p2;
> @@
>
> if(...)@p1 {@p2
> ...
> }
>
> @script: python r2@
> p1 << r1.p1;
> p2 << r1.p2;
> @@
>
> l1 = int (p1[0].line)
> l2 = int (p2[0].line)
> c1 = int (p1[0].column_end)
> c2 = int (p2[0].column)
>
> if l1 == l2 and c1+1 == c2:
>         cocci.include_match(False)
>
> @r3@
> position r1.p1, r1.p2;
> @@
>
> if(...
> - )@p1
> -{@p2
> +) {
> ...
> }
>
> Signed-off-by: Srishti Sharma <srishtishar@...il.com>

Acked-by: Julia Lawall <julia.lawall@...6.fr>

> ---
> Changes in v2:
>  -Improve commit message.
>
>  drivers/staging/pi433/pi433_if.c | 54 ++++++++++++++--------------------------
>  1 file changed, 18 insertions(+), 36 deletions(-)
>
> diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
> index d82c74d..d946838 100644
> --- a/drivers/staging/pi433/pi433_if.c
> +++ b/drivers/staging/pi433/pi433_if.c
> @@ -285,8 +285,7 @@ rf69_set_tx_cfg(struct pi433_device *dev, struct pi433_tx_cfg *tx_cfg)
>  	SET_CHECKED(rf69_set_crc_enable	  (dev->spi, tx_cfg->enable_crc));
>
>  	/* configure sync, if enabled */
> -	if (tx_cfg->enable_sync == optionOn)
> -	{
> +	if (tx_cfg->enable_sync == optionOn) {
>  		SET_CHECKED(rf69_set_sync_size(dev->spi, tx_cfg->sync_length));
>  		SET_CHECKED(rf69_set_sync_values(dev->spi, tx_cfg->sync_pattern));
>  	}
> @@ -408,8 +407,7 @@ pi433_receive(void *data)
>  		if (retval) goto abort; /* wait was interrupted */
>
>  		rf69_read_fifo(spi, (u8 *)&bytes_total, 1);
> -		if (bytes_total > dev->rx_buffer_size)
> -		{
> +		if (bytes_total > dev->rx_buffer_size) {
>  			retval = -1;
>  			goto abort;
>  		}
> @@ -509,16 +507,14 @@ pi433_tx_thread(void *data)
>  		mutex_lock(&device->tx_fifo_lock);
>
>  		retval = kfifo_out(&device->tx_fifo, &tx_cfg, sizeof(tx_cfg));
> -		if (retval != sizeof(tx_cfg))
> -		{
> +		if (retval != sizeof(tx_cfg)) {
>  			dev_dbg(device->dev, "reading tx_cfg from fifo failed: got %d byte(s), expected %d", retval, (unsigned int)sizeof(tx_cfg) );
>  			mutex_unlock(&device->tx_fifo_lock);
>  			continue;
>  		}
>
>  		retval = kfifo_out(&device->tx_fifo, &size, sizeof(size_t));
> -		if (retval != sizeof(size_t))
> -		{
> +		if (retval != sizeof(size_t)) {
>  			dev_dbg(device->dev, "reading msg size from fifo failed: got %d, expected %d", retval, (unsigned int)sizeof(size_t) );
>  			mutex_unlock(&device->tx_fifo_lock);
>  			continue;
> @@ -650,8 +646,7 @@ pi433_tx_thread(void *data)
>  		SET_CHECKED(rf69_set_mode(spi, standby));
>
>  		/* everything sent? */
> -		if ( kfifo_is_empty(&device->tx_fifo) )
> -		{
> +		if (kfifo_is_empty(&device->tx_fifo)) {
>  abort:
>  			if (rx_interrupted)
>  			{
> @@ -705,8 +700,7 @@ pi433_read(struct file *filp, char __user *buf, size_t size, loff_t *f_pos)
>  	mutex_unlock(&device->rx_lock);
>
>  	/* if read was successful copy to user space*/
> -	if (bytes_received > 0)
> -	{
> +	if (bytes_received > 0) {
>  		retval = copy_to_user(buf, device->rx_buffer, bytes_received);
>  		if (retval)
>  			return -EFAULT;
> @@ -806,8 +800,7 @@ pi433_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
>  	switch (cmd) {
>  	case PI433_IOC_RD_TX_CFG:
>  		tmp = _IOC_SIZE(cmd);
> -		if ( (tmp == 0) || ((tmp % sizeof(struct pi433_tx_cfg)) != 0) )
> -		{
> +		if ((tmp == 0) || ((tmp % sizeof(struct pi433_tx_cfg)) != 0)) {
>  			retval = -EINVAL;
>  			break;
>  		}
> @@ -823,8 +816,7 @@ pi433_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
>  		break;
>  	case PI433_IOC_WR_TX_CFG:
>  		tmp = _IOC_SIZE(cmd);
> -		if ( (tmp == 0) || ((tmp % sizeof(struct pi433_tx_cfg)) != 0) )
> -		{
> +		if ((tmp == 0) || ((tmp % sizeof(struct pi433_tx_cfg)) != 0)) {
>  			retval = -EINVAL;
>  			break;
>  		}
> @@ -917,8 +909,7 @@ static int pi433_open(struct inode *inode, struct file *filp)
>
>  	if (!device->rx_buffer) {
>  		device->rx_buffer = kmalloc(MAX_MSG_SIZE, GFP_KERNEL);
> -		if (!device->rx_buffer)
> -		{
> +		if (!device->rx_buffer) {
>  			dev_dbg(device->dev, "open/ENOMEM\n");
>  			return -ENOMEM;
>  		}
> @@ -926,8 +917,7 @@ static int pi433_open(struct inode *inode, struct file *filp)
>
>  	device->users++;
>  	instance = kzalloc(sizeof(*instance), GFP_KERNEL);
> -	if (!instance)
> -	{
> +	if (!instance) {
>  		kfree(device->rx_buffer);
>  		device->rx_buffer = NULL;
>  		return -ENOMEM;
> @@ -987,8 +977,7 @@ static int setup_GPIOs(struct pi433_device *device)
>  		snprintf(name, sizeof(name), "DIO%d", i);
>  		device->gpiod[i] = gpiod_get(&device->spi->dev, name, 0 /*GPIOD_IN*/);
>
> -		if (device->gpiod[i] == ERR_PTR(-ENOENT))
> -		{
> +		if (device->gpiod[i] == ERR_PTR(-ENOENT)) {
>  			dev_dbg(&device->spi->dev, "Could not find entry for %s. Ignoring.", name);
>  			continue;
>  		}
> @@ -1017,8 +1006,7 @@ static int setup_GPIOs(struct pi433_device *device)
>
>  		/* configure irq */
>  		device->irq_num[i] = gpiod_to_irq(device->gpiod[i]);
> -		if (device->irq_num[i] < 0)
> -		{
> +		if (device->irq_num[i] < 0) {
>  			device->gpiod[i] = ERR_PTR(-EINVAL);//(struct gpio_desc *)device->irq_num[i];
>  			return device->irq_num[i];
>  		}
> @@ -1157,8 +1145,7 @@ static int pi433_probe(struct spi_device *spi)
>
>  	/* setup GPIO (including irq_handler) for the different DIOs */
>  	retval = setup_GPIOs(device);
> -	if (retval)
> -	{
> +	if (retval) {
>  		dev_dbg(&spi->dev, "setup of GPIOs failed");
>  		goto GPIO_failed;
>  	}
> @@ -1176,16 +1163,14 @@ static int pi433_probe(struct spi_device *spi)
>  	device->tx_task_struct = kthread_run(pi433_tx_thread,
>  					     device,
>  					     "pi433_tx_task");
> -	if (IS_ERR(device->tx_task_struct))
> -	{
> +	if (IS_ERR(device->tx_task_struct)) {
>  		dev_dbg(device->dev, "start of send thread failed");
>  		goto send_thread_failed;
>  	}
>
>  	/* determ minor number */
>  	retval = pi433_get_minor(device);
> -	if (retval)
> -	{
> +	if (retval) {
>  		dev_dbg(device->dev, "get of minor number failed");
>  		goto minor_failed;
>  	}
> @@ -1214,8 +1199,7 @@ static int pi433_probe(struct spi_device *spi)
>  	device->cdev->owner = THIS_MODULE;
>  	cdev_init(device->cdev, &pi433_fops);
>  	retval = cdev_add(device->cdev, device->devt, 1);
> -	if (retval)
> -	{
> +	if (retval) {
>  		dev_dbg(device->dev, "register of cdev failed");
>  		goto cdev_failed;
>  	}
> @@ -1307,15 +1291,13 @@ static int __init pi433_init(void)
>  		return status;
>
>  	pi433_class = class_create(THIS_MODULE, "pi433");
> -	if (IS_ERR(pi433_class))
> -	{
> +	if (IS_ERR(pi433_class)) {
>  		unregister_chrdev(MAJOR(pi433_dev), pi433_spi_driver.driver.name);
>  		return PTR_ERR(pi433_class);
>  	}
>
>  	status = spi_register_driver(&pi433_spi_driver);
> -	if (status < 0)
> -	{
> +	if (status < 0) {
>  		class_destroy(pi433_class);
>  		unregister_chrdev(MAJOR(pi433_dev), pi433_spi_driver.driver.name);
>  	}
> --
> 2.7.4
>
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