Re: [PATCH v2 2/3] tools:iio: adjust coding style

[Jonathan Cameron <jic23@kernel.org>]

On 10/06/15 20:51, Hartmut Knaack wrote:
> Fix various coding style issues, including:
>   * have spaces around operators
>   * indentation
>   * consolidate parameters in same line
Not sure I'd have bothered with the consolidation
but does no harm and the rest is well worth while.
>   * required braces
>   * adjust/drop comments
>   * multiline comment style
>   * delete unnecessary empty lines
>   * add empty lines to visualize logial code blocks
>   * typos
> 
> Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>

Applied to the togreg branch of iio.git.  Chances are it will
be for the next cycle now though.

Thanks,

Jonathan
> ---
>  tools/iio/generic_buffer.c    |  46 +++++++++--------
>  tools/iio/iio_event_monitor.c |  13 +++--
>  tools/iio/iio_utils.c         | 111 +++++++++++++++++++++++++-----------------
>  tools/iio/iio_utils.h         |  15 +++---
>  tools/iio/lsiio.c             |  15 +++---
>  5 files changed, 118 insertions(+), 82 deletions(-)
> 
> diff --git a/tools/iio/generic_buffer.c b/tools/iio/generic_buffer.c
> index 4eebb66..fc362d2 100644
> --- a/tools/iio/generic_buffer.c
> +++ b/tools/iio/generic_buffer.c
> @@ -51,11 +51,13 @@ int size_from_channelarray(struct iio_channel_info *channels, int num_channels)
>  		if (bytes % channels[i].bytes == 0)
>  			channels[i].location = bytes;
>  		else
> -			channels[i].location = bytes - bytes%channels[i].bytes
> -				+ channels[i].bytes;
> +			channels[i].location = bytes - bytes % channels[i].bytes
> +					       + channels[i].bytes;
> +
>  		bytes = channels[i].location + channels[i].bytes;
>  		i++;
>  	}
> +
>  	return bytes;
>  }
>  
> @@ -136,9 +138,9 @@ void print8byte(uint64_t input, struct iio_channel_info *info)
>  /**
>   * process_scan() - print out the values in SI units
>   * @data:		pointer to the start of the scan
> - * @channels:		information about the channels. Note
> - *  size_from_channelarray must have been called first to fill the
> - *  location offsets.
> + * @channels:		information about the channels.
> + *			Note: size_from_channelarray must have been called first
> + *			      to fill the location offsets.
>   * @num_channels:	number of channels
>   **/
>  void process_scan(char *data,
> @@ -213,6 +215,7 @@ int main(int argc, char **argv)
>  			num_loops = strtoul(optarg, &dummy, 10);
>  			if (errno)
>  				return -errno;
> +
>  			break;
>  		case 'e':
>  			noevents = 1;
> @@ -225,6 +228,7 @@ int main(int argc, char **argv)
>  			buf_len = strtoul(optarg, &dummy, 10);
>  			if (errno)
>  				return -errno;
> +
>  			break;
>  		case 'n':
>  			device_name = optarg;
> @@ -257,6 +261,7 @@ int main(int argc, char **argv)
>  		printf("Failed to find the %s\n", device_name);
>  		return dev_num;
>  	}
> +
>  	printf("iio device number being used is %d\n", dev_num);
>  
>  	ret = asprintf(&dev_dir_name, "%siio:device%d", iio_dir, dev_num);
> @@ -285,9 +290,11 @@ int main(int argc, char **argv)
>  			ret = trig_num;
>  			goto error_free_triggername;
>  		}
> +
>  		printf("iio trigger number being used is %d\n", trig_num);
> -	} else
> +	} else {
>  		printf("trigger-less mode selected\n");
> +	}
>  
>  	/*
>  	 * Parse the files in scan_elements to identify what channels are
> @@ -314,8 +321,10 @@ int main(int argc, char **argv)
>  
>  	if (!notrigger) {
>  		printf("%s %s\n", dev_dir_name, trigger_name);
> -		/* Set the device trigger to be the data ready trigger found
> -		 * above */
> +		/*
> +		 * Set the device trigger to be the data ready trigger found
> +		 * above
> +		 */
>  		ret = write_sysfs_string_and_verify("trigger/current_trigger",
>  						    dev_dir_name,
>  						    trigger_name);
> @@ -334,8 +343,9 @@ int main(int argc, char **argv)
>  	ret = write_sysfs_int("enable", buf_dir_name, 1);
>  	if (ret < 0)
>  		goto error_free_buf_dir_name;
> +
>  	scan_size = size_from_channelarray(channels, num_channels);
> -	data = malloc(scan_size*buf_len);
> +	data = malloc(scan_size * buf_len);
>  	if (!data) {
>  		ret = -ENOMEM;
>  		goto error_free_buf_dir_name;
> @@ -349,13 +359,12 @@ int main(int argc, char **argv)
>  
>  	/* Attempt to open non blocking the access dev */
>  	fp = open(buffer_access, O_RDONLY | O_NONBLOCK);
> -	if (fp == -1) { /* If it isn't there make the node */
> +	if (fp == -1) { /* TODO: If it isn't there make the node */
>  		ret = -errno;
>  		printf("Failed to open %s\n", buffer_access);
>  		goto error_free_buffer_access;
>  	}
>  
> -	/* Wait for events 10 times */
>  	for (j = 0; j < num_loops; j++) {
>  		if (!noevents) {
>  			struct pollfd pfd = {
> @@ -372,25 +381,22 @@ int main(int argc, char **argv)
>  			}
>  
>  			toread = buf_len;
> -
>  		} else {
>  			usleep(timedelay);
>  			toread = 64;
>  		}
>  
> -		read_size = read(fp,
> -				 data,
> -				 toread*scan_size);
> +		read_size = read(fp, data, toread * scan_size);
>  		if (read_size < 0) {
>  			if (errno == EAGAIN) {
>  				printf("nothing available\n");
>  				continue;
> -			} else
> +			} else {
>  				break;
> +			}
>  		}
> -		for (i = 0; i < read_size/scan_size; i++)
> -			process_scan(data + scan_size*i,
> -				     channels,
> +		for (i = 0; i < read_size / scan_size; i++)
> +			process_scan(data + scan_size * i, channels,
>  				     num_channels);
>  	}
>  
> @@ -409,6 +415,7 @@ int main(int argc, char **argv)
>  error_close_buffer_access:
>  	if (close(fp) == -1)
>  		perror("Failed to close buffer");
> +
>  error_free_buffer_access:
>  	free(buffer_access);
>  error_free_data:
> @@ -424,6 +431,7 @@ error_free_channels:
>  error_free_triggername:
>  	if (datardytrigger)
>  		free(trigger_name);
> +
>  error_free_dev_dir_name:
>  	free(dev_dir_name);
>  
> diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c
> index 2559fba..e16d95f 100644
> --- a/tools/iio/iio_event_monitor.c
> +++ b/tools/iio/iio_event_monitor.c
> @@ -13,7 +13,6 @@
>   *
>   * Usage:
>   *	iio_event_monitor <device_name>
> - *
>   */
>  
>  #include <unistd.h>
> @@ -209,7 +208,8 @@ static void print_event(struct iio_event_data *event)
>  
>  	if (!event_is_known(event)) {
>  		printf("Unknown event: time: %lld, id: %llx\n",
> -				event->timestamp, event->id);
> +		       event->timestamp, event->id);
> +
>  		return;
>  	}
>  
> @@ -229,6 +229,7 @@ static void print_event(struct iio_event_data *event)
>  
>  	if (dir != IIO_EV_DIR_NONE)
>  		printf(", direction: %s", iio_ev_dir_text[dir]);
> +
>  	printf("\n");
>  }
>  
> @@ -251,14 +252,16 @@ int main(int argc, char **argv)
>  	dev_num = find_type_by_name(device_name, "iio:device");
>  	if (dev_num >= 0) {
>  		printf("Found IIO device with name %s with device number %d\n",
> -			device_name, dev_num);
> +		       device_name, dev_num);
>  		ret = asprintf(&chrdev_name, "/dev/iio:device%d", dev_num);
>  		if (ret < 0) {
>  			return -ENOMEM;
>  		}
>  	} else {
> -		/* If we can't find a IIO device by name assume device_name is a
> -		   IIO chrdev */
> +		/*
> +		 * If we can't find an IIO device by name assume device_name is
> +		 * an IIO chrdev
> +		 */
>  		chrdev_name = strdup(device_name);
>  		if (!chrdev_name)
>  			return -ENOMEM;
> diff --git a/tools/iio/iio_utils.c b/tools/iio/iio_utils.c
> index ec9ab7f..4eac11a 100644
> --- a/tools/iio/iio_utils.c
> +++ b/tools/iio/iio_utils.c
> @@ -32,8 +32,7 @@ static char * const iio_direction[] = {
>   *
>   * Returns 0 on success, or a negative error code if string extraction failed.
>   **/
> -int iioutils_break_up_name(const char *full_name,
> -				  char **generic_name)
> +int iioutils_break_up_name(const char *full_name, char **generic_name)
>  {
>  	char *current;
>  	char *w, *r;
> @@ -65,6 +64,7 @@ int iioutils_break_up_name(const char *full_name,
>  			*w = *r;
>  			w++;
>  		}
> +
>  		r++;
>  	}
>  	*w = '\0';
> @@ -88,15 +88,10 @@ int iioutils_break_up_name(const char *full_name,
>   *
>   * Returns a value >= 0 on success, otherwise a negative error code.
>   **/
> -int iioutils_get_type(unsigned *is_signed,
> -			     unsigned *bytes,
> -			     unsigned *bits_used,
> -			     unsigned *shift,
> -			     uint64_t *mask,
> -			     unsigned *be,
> -			     const char *device_dir,
> -			     const char *name,
> -			     const char *generic_name)
> +int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
> +		      unsigned *shift, uint64_t *mask, unsigned *be,
> +		      const char *device_dir, const char *name,
> +		      const char *generic_name)
>  {
>  	FILE *sysfsfp;
>  	int ret;
> @@ -126,6 +121,7 @@ int iioutils_get_type(unsigned *is_signed,
>  		ret = -errno;
>  		goto error_free_builtname_generic;
>  	}
> +
>  	ret = -ENOENT;
>  	while (ent = readdir(dp), ent != NULL)
>  		/*
> @@ -140,6 +136,7 @@ int iioutils_get_type(unsigned *is_signed,
>  				ret = -ENOMEM;
>  				goto error_closedir;
>  			}
> +
>  			sysfsfp = fopen(filename, "r");
>  			if (sysfsfp == NULL) {
>  				ret = -errno;
> @@ -162,12 +159,14 @@ int iioutils_get_type(unsigned *is_signed,
>  				printf("scan type description didn't match\n");
>  				goto error_close_sysfsfp;
>  			}
> +
>  			*be = (endianchar == 'b');
>  			*bytes = padint / 8;
>  			if (*bits_used == 64)
>  				*mask = ~0;
>  			else
>  				*mask = (1 << *bits_used) - 1;
> +
>  			*is_signed = (signchar == 's');
>  			if (fclose(sysfsfp)) {
>  				ret = -errno;
> @@ -177,9 +176,9 @@ int iioutils_get_type(unsigned *is_signed,
>  
>  			sysfsfp = 0;
>  			free(filename);
> -
>  			filename = 0;
>  		}
> +
>  error_close_sysfsfp:
>  	if (sysfsfp)
>  		if (fclose(sysfsfp))
> @@ -188,6 +187,7 @@ error_close_sysfsfp:
>  error_free_filename:
>  	if (filename)
>  		free(filename);
> +
>  error_closedir:
>  	if (closedir(dp) == -1)
>  		perror("iioutils_get_type(): Failed to close directory");
> @@ -212,11 +212,9 @@ error_free_scan_el_dir:
>   *
>   * Returns a value >= 0 on success, otherwise a negative error code.
>   **/
> -int iioutils_get_param_float(float *output,
> -				    const char *param_name,
> -				    const char *device_dir,
> -				    const char *name,
> -				    const char *generic_name)
> +int iioutils_get_param_float(float *output, const char *param_name,
> +			     const char *device_dir, const char *name,
> +			     const char *generic_name)
>  {
>  	FILE *sysfsfp;
>  	int ret;
> @@ -235,11 +233,13 @@ int iioutils_get_param_float(float *output,
>  		ret = -ENOMEM;
>  		goto error_free_builtname;
>  	}
> +
>  	dp = opendir(device_dir);
>  	if (dp == NULL) {
>  		ret = -errno;
>  		goto error_free_builtname_generic;
>  	}
> +
>  	ret = -ENOENT;
>  	while (ent = readdir(dp), ent != NULL)
>  		if ((strcmp(builtname, ent->d_name) == 0) ||
> @@ -250,11 +250,13 @@ int iioutils_get_param_float(float *output,
>  				ret = -ENOMEM;
>  				goto error_closedir;
>  			}
> +
>  			sysfsfp = fopen(filename, "r");
>  			if (!sysfsfp) {
>  				ret = -errno;
>  				goto error_free_filename;
>  			}
> +
>  			errno = 0;
>  			if (fscanf(sysfsfp, "%f", output) != 1)
>  				ret = errno ? -errno : -ENODATA;
> @@ -264,6 +266,7 @@ int iioutils_get_param_float(float *output,
>  error_free_filename:
>  	if (filename)
>  		free(filename);
> +
>  error_closedir:
>  	if (closedir(dp) == -1)
>  		perror("iioutils_get_param_float(): Failed to close directory");
> @@ -282,16 +285,14 @@ error_free_builtname:
>   * @cnt: the amount of array elements
>   **/
>  
> -void bsort_channel_array_by_index(struct iio_channel_info **ci_array,
> -					 int cnt)
> +void bsort_channel_array_by_index(struct iio_channel_info **ci_array, int cnt)
>  {
> -
>  	struct iio_channel_info temp;
>  	int x, y;
>  
>  	for (x = 0; x < cnt; x++)
>  		for (y = 0; y < (cnt - 1); y++)
> -			if ((*ci_array)[y].index > (*ci_array)[y+1].index) {
> +			if ((*ci_array)[y].index > (*ci_array)[y + 1].index) {
>  				temp = (*ci_array)[y + 1];
>  				(*ci_array)[y + 1] = (*ci_array)[y];
>  				(*ci_array)[y] = temp;
> @@ -307,8 +308,7 @@ void bsort_channel_array_by_index(struct iio_channel_info **ci_array,
>   * Returns 0 on success, otherwise a negative error code.
>   **/
>  int build_channel_array(const char *device_dir,
> -			      struct iio_channel_info **ci_array,
> -			      int *counter)
> +			struct iio_channel_info **ci_array, int *counter)
>  {
>  	DIR *dp;
>  	FILE *sysfsfp;
> @@ -329,6 +329,7 @@ int build_channel_array(const char *device_dir,
>  		ret = -errno;
>  		goto error_free_name;
>  	}
> +
>  	while (ent = readdir(dp), ent != NULL)
>  		if (strcmp(ent->d_name + strlen(ent->d_name) - strlen("_en"),
>  			   "_en") == 0) {
> @@ -338,12 +339,14 @@ int build_channel_array(const char *device_dir,
>  				ret = -ENOMEM;
>  				goto error_close_dir;
>  			}
> +
>  			sysfsfp = fopen(filename, "r");
>  			if (sysfsfp == NULL) {
>  				ret = -errno;
>  				free(filename);
>  				goto error_close_dir;
>  			}
> +
>  			errno = 0;
>  			if (fscanf(sysfsfp, "%i", &ret) != 1) {
>  				ret = errno ? -errno : -ENODATA;
> @@ -353,9 +356,9 @@ int build_channel_array(const char *device_dir,
>  				free(filename);
>  				goto error_close_dir;
>  			}
> -
>  			if (ret == 1)
>  				(*counter)++;
> +
>  			if (fclose(sysfsfp)) {
>  				ret = -errno;
>  				free(filename);
> @@ -364,11 +367,13 @@ int build_channel_array(const char *device_dir,
>  
>  			free(filename);
>  		}
> +
>  	*ci_array = malloc(sizeof(**ci_array) * (*counter));
>  	if (*ci_array == NULL) {
>  		ret = -ENOMEM;
>  		goto error_close_dir;
>  	}
> +
>  	seekdir(dp, 0);
>  	while (ent = readdir(dp), ent != NULL) {
>  		if (strcmp(ent->d_name + strlen(ent->d_name) - strlen("_en"),
> @@ -384,6 +389,7 @@ int build_channel_array(const char *device_dir,
>  				count--;
>  				goto error_cleanup_array;
>  			}
> +
>  			sysfsfp = fopen(filename, "r");
>  			if (sysfsfp == NULL) {
>  				ret = -errno;
> @@ -391,6 +397,7 @@ int build_channel_array(const char *device_dir,
>  				count--;
>  				goto error_cleanup_array;
>  			}
> +
>  			errno = 0;
>  			if (fscanf(sysfsfp, "%i", &current_enabled) != 1) {
>  				ret = errno ? -errno : -ENODATA;
> @@ -423,6 +430,7 @@ int build_channel_array(const char *device_dir,
>  				count--;
>  				goto error_cleanup_array;
>  			}
> +
>  			/* Get the generic and specific name elements */
>  			ret = iioutils_break_up_name(current->name,
>  						     &current->generic_name);
> @@ -432,6 +440,7 @@ int build_channel_array(const char *device_dir,
>  				count--;
>  				goto error_cleanup_array;
>  			}
> +
>  			ret = asprintf(&filename,
>  				       "%s/%s_index",
>  				       scan_el_dir,
> @@ -441,6 +450,7 @@ int build_channel_array(const char *device_dir,
>  				ret = -ENOMEM;
>  				goto error_cleanup_array;
>  			}
> +
>  			sysfsfp = fopen(filename, "r");
>  			if (sysfsfp == NULL) {
>  				ret = -errno;
> @@ -474,6 +484,7 @@ int build_channel_array(const char *device_dir,
>  						       current->generic_name);
>  			if (ret < 0)
>  				goto error_cleanup_array;
> +
>  			ret = iioutils_get_param_float(&current->offset,
>  						       "offset",
>  						       device_dir,
> @@ -481,6 +492,7 @@ int build_channel_array(const char *device_dir,
>  						       current->generic_name);
>  			if (ret < 0)
>  				goto error_cleanup_array;
> +
>  			ret = iioutils_get_type(&current->is_signed,
>  						&current->bytes,
>  						&current->bits_used,
> @@ -562,9 +574,9 @@ int find_type_by_name(const char *name, const char *type)
>  
>  	while (ent = readdir(dp), ent != NULL) {
>  		if (strcmp(ent->d_name, ".") != 0 &&
> -			strcmp(ent->d_name, "..") != 0 &&
> -			strlen(ent->d_name) > strlen(type) &&
> -			strncmp(ent->d_name, type, strlen(type)) == 0) {
> +		    strcmp(ent->d_name, "..") != 0 &&
> +		    strlen(ent->d_name) > strlen(type) &&
> +		    strncmp(ent->d_name, type, strlen(type)) == 0) {
>  			errno = 0;
>  			ret = sscanf(ent->d_name + strlen(type), "%d", &number);
>  			if (ret < 0) {
> @@ -580,12 +592,9 @@ int find_type_by_name(const char *name, const char *type)
>  			numstrlen = calc_digits(number);
>  			/* verify the next character is not a colon */
>  			if (strncmp(ent->d_name + strlen(type) + numstrlen,
> -					":",
> -					1) != 0) {
> -				filename = malloc(strlen(iio_dir)
> -						+ strlen(type)
> -						+ numstrlen
> -						+ 6);
> +			    ":", 1) != 0) {
> +				filename = malloc(strlen(iio_dir) + strlen(type)
> +						  + numstrlen + 6);
>  				if (filename == NULL) {
>  					ret = -ENOMEM;
>  					goto error_close_dir;
> @@ -603,6 +612,7 @@ int find_type_by_name(const char *name, const char *type)
>  					free(filename);
>  					continue;
>  				}
> +
>  				free(filename);
>  				errno = 0;
>  				if (fscanf(nameFile, "%s", thisname) != 1) {
> @@ -618,6 +628,7 @@ int find_type_by_name(const char *name, const char *type)
>  				if (strcmp(name, thisname) == 0) {
>  					if (closedir(dp) == -1)
>  						return -errno;
> +
>  					return number;
>  				}
>  			}
> @@ -631,6 +642,7 @@ int find_type_by_name(const char *name, const char *type)
>  error_close_dir:
>  	if (closedir(dp) == -1)
>  		perror("find_type_by_name(): Failed to close directory");
> +
>  	return ret;
>  }
>  
> @@ -644,6 +656,7 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
>  
>  	if (temp == NULL)
>  		return -ENOMEM;
> +
>  	ret = sprintf(temp, "%s/%s", basedir, filename);
>  	if (ret < 0)
>  		goto error_free;
> @@ -654,6 +667,7 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
>  		printf("failed to open %s\n", temp);
>  		goto error_free;
>  	}
> +
>  	ret = fprintf(sysfsfp, "%d", val);
>  	if (ret < 0) {
>  		if (fclose(sysfsfp))
> @@ -674,6 +688,7 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
>  			printf("failed to open %s\n", temp);
>  			goto error_free;
>  		}
> +
>  		if (fscanf(sysfsfp, "%d", &test) != 1) {
>  			ret = errno ? -errno : -ENODATA;
>  			if (fclose(sysfsfp))
> @@ -688,13 +703,12 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
>  		}
>  
>  		if (test != val) {
> -			printf("Possible failure in int write %d to %s%s\n",
> -				val,
> -				basedir,
> -				filename);
> +			printf("Possible failure in int write %d to %s/%s\n",
> +			       val, basedir, filename);
>  			ret = -1;
>  		}
>  	}
> +
>  error_free:
>  	free(temp);
>  	return ret;
> @@ -739,6 +753,7 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
>  		printf("Memory allocation failed\n");
>  		return -ENOMEM;
>  	}
> +
>  	ret = sprintf(temp, "%s/%s", basedir, filename);
>  	if (ret < 0)
>  		goto error_free;
> @@ -749,6 +764,7 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
>  		printf("Could not open %s\n", temp);
>  		goto error_free;
>  	}
> +
>  	ret = fprintf(sysfsfp, "%s", val);
>  	if (ret < 0) {
>  		if (fclose(sysfsfp))
> @@ -766,9 +782,10 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
>  		sysfsfp = fopen(temp, "r");
>  		if (sysfsfp == NULL) {
>  			ret = -errno;
> -			printf("could not open file to verify\n");
> +			printf("Could not open file to verify\n");
>  			goto error_free;
>  		}
> +
>  		if (fscanf(sysfsfp, "%s", temp) != 1) {
>  			ret = errno ? -errno : -ENODATA;
>  			if (fclose(sysfsfp))
> @@ -784,15 +801,12 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
>  
>  		if (strcmp(temp, val) != 0) {
>  			printf("Possible failure in string write of %s "
> -				"Should be %s "
> -				"written to %s\%s\n",
> -				temp,
> -				val,
> -				basedir,
> -				filename);
> +			       "Should be %s written to %s/%s\n", temp, val,
> +			       basedir, filename);
>  			ret = -1;
>  		}
>  	}
> +
>  error_free:
>  	free(temp);
>  
> @@ -845,6 +859,7 @@ int read_sysfs_posint(const char *filename, const char *basedir)
>  		printf("Memory allocation failed");
>  		return -ENOMEM;
>  	}
> +
>  	ret = sprintf(temp, "%s/%s", basedir, filename);
>  	if (ret < 0)
>  		goto error_free;
> @@ -854,6 +869,7 @@ int read_sysfs_posint(const char *filename, const char *basedir)
>  		ret = -errno;
>  		goto error_free;
>  	}
> +
>  	errno = 0;
>  	if (fscanf(sysfsfp, "%d\n", &ret) != 1) {
>  		ret = errno ? -errno : -ENODATA;
> @@ -868,6 +884,7 @@ int read_sysfs_posint(const char *filename, const char *basedir)
>  
>  error_free:
>  	free(temp);
> +
>  	return ret;
>  }
>  
> @@ -889,6 +906,7 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val)
>  		printf("Memory allocation failed");
>  		return -ENOMEM;
>  	}
> +
>  	ret = sprintf(temp, "%s/%s", basedir, filename);
>  	if (ret < 0)
>  		goto error_free;
> @@ -898,6 +916,7 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val)
>  		ret = -errno;
>  		goto error_free;
>  	}
> +
>  	errno = 0;
>  	if (fscanf(sysfsfp, "%f\n", val) != 1) {
>  		ret = errno ? -errno : -ENODATA;
> @@ -912,6 +931,7 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val)
>  
>  error_free:
>  	free(temp);
> +
>  	return ret;
>  }
>  
> @@ -933,6 +953,7 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str)
>  		printf("Memory allocation failed");
>  		return -ENOMEM;
>  	}
> +
>  	ret = sprintf(temp, "%s/%s", basedir, filename);
>  	if (ret < 0)
>  		goto error_free;
> @@ -942,6 +963,7 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str)
>  		ret = -errno;
>  		goto error_free;
>  	}
> +
>  	errno = 0;
>  	if (fscanf(sysfsfp, "%s\n", str) != 1) {
>  		ret = errno ? -errno : -ENODATA;
> @@ -956,6 +978,7 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str)
>  
>  error_free:
>  	free(temp);
> +
>  	return ret;
>  }
>  
> diff --git a/tools/iio/iio_utils.h b/tools/iio/iio_utils.h
> index 379eed9..0866101 100644
> --- a/tools/iio/iio_utils.h
> +++ b/tools/iio/iio_utils.h
> @@ -51,17 +51,16 @@ struct iio_channel_info {
>  };
>  
>  int iioutils_break_up_name(const char *full_name, char **generic_name);
> -int iioutils_get_type(unsigned *is_signed, unsigned *bytes,
> -					  unsigned *bits_used, unsigned *shift,
> -					  uint64_t *mask, unsigned *be,
> -					  const char *device_dir, const char *name,
> -					  const char *generic_name);
> +int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
> +		      unsigned *shift, uint64_t *mask, unsigned *be,
> +		      const char *device_dir, const char *name,
> +		      const char *generic_name);
>  int iioutils_get_param_float(float *output, const char *param_name,
> -							 const char *device_dir, const char *name,
> -							 const char *generic_name);
> +			     const char *device_dir, const char *name,
> +			     const char *generic_name);
>  void bsort_channel_array_by_index(struct iio_channel_info **ci_array, int cnt);
>  int build_channel_array(const char *device_dir,
> -						struct iio_channel_info **ci_array, int *counter);
> +			struct iio_channel_info **ci_array, int *counter);
>  int find_type_by_name(const char *name, const char *type);
>  int write_sysfs_int(const char *filename, const char *basedir, int val);
>  int write_sysfs_int_and_verify(const char *filename, const char *basedir,
> diff --git a/tools/iio/lsiio.c b/tools/iio/lsiio.c
> index b59ee17..f5b3bd0 100644
> --- a/tools/iio/lsiio.c
> +++ b/tools/iio/lsiio.c
> @@ -20,7 +20,6 @@
>  #include <sys/dir.h>
>  #include "iio_utils.h"
>  
> -
>  static enum verbosity {
>  	VERBLEVEL_DEFAULT,	/* 0 gives lspci behaviour */
>  	VERBLEVEL_SENSORS,	/* 1 lists sensors */
> @@ -29,17 +28,16 @@ static enum verbosity {
>  const char *type_device = "iio:device";
>  const char *type_trigger = "trigger";
>  
> -
>  static inline int check_prefix(const char *str, const char *prefix)
>  {
>  	return strlen(str) > strlen(prefix) &&
> -		strncmp(str, prefix, strlen(prefix)) == 0;
> +	       strncmp(str, prefix, strlen(prefix)) == 0;
>  }
>  
>  static inline int check_postfix(const char *str, const char *postfix)
>  {
>  	return strlen(str) > strlen(postfix) &&
> -		strcmp(str + strlen(str) - strlen(postfix), postfix) == 0;
> +	       strcmp(str + strlen(str) - strlen(postfix), postfix) == 0;
>  }
>  
>  static int dump_channels(const char *dev_dir_name)
> @@ -50,11 +48,11 @@ static int dump_channels(const char *dev_dir_name)
>  	dp = opendir(dev_dir_name);
>  	if (dp == NULL)
>  		return -errno;
> +
>  	while (ent = readdir(dp), ent != NULL)
>  		if (check_prefix(ent->d_name, "in_") &&
> -		    check_postfix(ent->d_name, "_raw")) {
> +		    check_postfix(ent->d_name, "_raw"))
>  			printf("   %-10s\n", ent->d_name);
> -		}
>  
>  	return (closedir(dp) == -1) ? -errno : 0;
>  }
> @@ -69,6 +67,7 @@ static int dump_one_device(const char *dev_dir_name)
>  			"%i", &dev_idx);
>  	if (retval != 1)
>  		return -EINVAL;
> +
>  	retval = read_sysfs_string("name", dev_dir_name, name);
>  	if (retval)
>  		return retval;
> @@ -77,6 +76,7 @@ static int dump_one_device(const char *dev_dir_name)
>  
>  	if (verblevel >= VERBLEVEL_SENSORS)
>  		return dump_channels(dev_dir_name);
> +
>  	return 0;
>  }
>  
> @@ -90,11 +90,13 @@ static int dump_one_trigger(const char *dev_dir_name)
>  			"%i", &dev_idx);
>  	if (retval != 1)
>  		return -EINVAL;
> +
>  	retval = read_sysfs_string("name", dev_dir_name, name);
>  	if (retval)
>  		return retval;
>  
>  	printf("Trigger %03d: %s\n", dev_idx, name);
> +
>  	return 0;
>  }
>  
> @@ -151,6 +153,7 @@ static int dump_devices(void)
>  			free(dev_dir_name);
>  		}
>  	}
> +
>  	return (closedir(dp) == -1) ? -errno : 0;
>  
>  error_close_dir:
>