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tools: iio: Remove explicit NULL comparison

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Remove explicit NULL comparison and write it in its simpler form as
recommended by checkpatch.pl.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Cristina Opriceana 2015-07-13 16:15:56 +03:00 • committed by Jonathan Cameron
parent 8ab6abfca0
commit ff1ac639b3
3 changed files with 35 additions and 35 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
tools/iio/generic_buffer.c
View file

@ -270,7 +270,7 @@ int main(int argc, char **argv)
} }
} }
if (device_name == NULL) { if (!device_name) {
printf("Device name not set\n"); printf("Device name not set\n");
print_usage(); print_usage();
return -1; return -1;
@ -290,7 +290,7 @@ int main(int argc, char **argv)
return -ENOMEM; return -ENOMEM;
if (!notrigger) { if (!notrigger) {
if (trigger_name == NULL) { if (!trigger_name) {
/* /*
* Build the trigger name. If it is device associated * Build the trigger name. If it is device associated
* its name is <device_name>_dev[n] where n matches * its name is <device_name>_dev[n] where n matches

56
tools/iio/iio_utils.c
View file

@ -117,13 +117,13 @@ int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
} }
dp = opendir(scan_el_dir); dp = opendir(scan_el_dir);
if (dp == NULL) { if (!dp) {
ret = -errno; ret = -errno;
goto error_free_builtname_generic; goto error_free_builtname_generic;
} }
ret = -ENOENT; ret = -ENOENT;
while (ent = readdir(dp), ent != NULL) while (ent = readdir(dp), ent)
/* /*
* Do we allow devices to override a generic name with * Do we allow devices to override a generic name with
* a specific one? * a specific one?
@ -138,7 +138,7 @@ int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
} }
sysfsfp = fopen(filename, "r"); sysfsfp = fopen(filename, "r");
if (sysfsfp == NULL) { if (!sysfsfp) {
ret = -errno; ret = -errno;
printf("failed to open %s\n", filename); printf("failed to open %s\n", filename);
goto error_free_filename; goto error_free_filename;
@ -235,13 +235,13 @@ int iioutils_get_param_float(float *output, const char *param_name,
} }
dp = opendir(device_dir); dp = opendir(device_dir);
if (dp == NULL) { if (!dp) {
ret = -errno; ret = -errno;
goto error_free_builtname_generic; goto error_free_builtname_generic;
} }
ret = -ENOENT; ret = -ENOENT;
while (ent = readdir(dp), ent != NULL) while (ent = readdir(dp), ent)
if ((strcmp(builtname, ent->d_name) == 0) || if ((strcmp(builtname, ent->d_name) == 0) ||
(strcmp(builtname_generic, ent->d_name) == 0)) { (strcmp(builtname_generic, ent->d_name) == 0)) {
ret = asprintf(&filename, ret = asprintf(&filename,
@ -325,12 +325,12 @@ int build_channel_array(const char *device_dir,
return -ENOMEM; return -ENOMEM;
dp = opendir(scan_el_dir); dp = opendir(scan_el_dir);
if (dp == NULL) { if (!dp) {
ret = -errno; ret = -errno;
goto error_free_name; goto error_free_name;
} }
while (ent = readdir(dp), ent != NULL) while (ent = readdir(dp), ent)
if (strcmp(ent->d_name + strlen(ent->d_name) - strlen("_en"), if (strcmp(ent->d_name + strlen(ent->d_name) - strlen("_en"),
"_en") == 0) { "_en") == 0) {
ret = asprintf(&filename, ret = asprintf(&filename,
@ -341,7 +341,7 @@ int build_channel_array(const char *device_dir,
} }
sysfsfp = fopen(filename, "r"); sysfsfp = fopen(filename, "r");
if (sysfsfp == NULL) { if (!sysfsfp) {
ret = -errno; ret = -errno;
free(filename); free(filename);
goto error_close_dir; goto error_close_dir;
@ -369,13 +369,13 @@ int build_channel_array(const char *device_dir,
} }
*ci_array = malloc(sizeof(**ci_array) * (*counter)); *ci_array = malloc(sizeof(**ci_array) * (*counter));
if (*ci_array == NULL) { if (!*ci_array) {
ret = -ENOMEM; ret = -ENOMEM;
goto error_close_dir; goto error_close_dir;
} }
seekdir(dp, 0); seekdir(dp, 0);
while (ent = readdir(dp), ent != NULL) { while (ent = readdir(dp), ent) {
if (strcmp(ent->d_name + strlen(ent->d_name) - strlen("_en"), if (strcmp(ent->d_name + strlen(ent->d_name) - strlen("_en"),
"_en") == 0) { "_en") == 0) {
int current_enabled = 0; int current_enabled = 0;
@ -391,7 +391,7 @@ int build_channel_array(const char *device_dir,
} }
sysfsfp = fopen(filename, "r"); sysfsfp = fopen(filename, "r");
if (sysfsfp == NULL) { if (!sysfsfp) {
ret = -errno; ret = -errno;
free(filename); free(filename);
count--; count--;
@ -424,7 +424,7 @@ int build_channel_array(const char *device_dir,
current->name = strndup(ent->d_name, current->name = strndup(ent->d_name,
strlen(ent->d_name) - strlen(ent->d_name) -
strlen("_en")); strlen("_en"));
if (current->name == NULL) { if (!current->name) {
free(filename); free(filename);
ret = -ENOMEM; ret = -ENOMEM;
count--; count--;
@ -452,7 +452,7 @@ int build_channel_array(const char *device_dir,
} }
sysfsfp = fopen(filename, "r"); sysfsfp = fopen(filename, "r");
if (sysfsfp == NULL) { if (!sysfsfp) {
ret = -errno; ret = -errno;
printf("failed to open %s\n", filename); printf("failed to open %s\n", filename);
free(filename); free(filename);
@ -567,12 +567,12 @@ int find_type_by_name(const char *name, const char *type)
char *filename; char *filename;
dp = opendir(iio_dir); dp = opendir(iio_dir);
if (dp == NULL) { if (!dp) {
printf("No industrialio devices available\n"); printf("No industrialio devices available\n");
return -ENODEV; return -ENODEV;
} }
while (ent = readdir(dp), ent != NULL) { while (ent = readdir(dp), ent) {
if (strcmp(ent->d_name, ".") != 0 && if (strcmp(ent->d_name, ".") != 0 &&
strcmp(ent->d_name, "..") != 0 && strcmp(ent->d_name, "..") != 0 &&
strlen(ent->d_name) > strlen(type) && strlen(ent->d_name) > strlen(type) &&
@ -595,7 +595,7 @@ int find_type_by_name(const char *name, const char *type)
":", 1) != 0) { ":", 1) != 0) {
filename = malloc(strlen(iio_dir) + strlen(type) filename = malloc(strlen(iio_dir) + strlen(type)
+ numstrlen + 6); + numstrlen + 6);
if (filename == NULL) { if (!filename) {
ret = -ENOMEM; ret = -ENOMEM;
goto error_close_dir; goto error_close_dir;
} }
@ -654,7 +654,7 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
int test; int test;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2); char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
if (temp == NULL) if (!temp)
return -ENOMEM; return -ENOMEM;
ret = sprintf(temp, "%s/%s", basedir, filename); ret = sprintf(temp, "%s/%s", basedir, filename);
@ -662,7 +662,7 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
goto error_free; goto error_free;
sysfsfp = fopen(temp, "w"); sysfsfp = fopen(temp, "w");
if (sysfsfp == NULL) { if (!sysfsfp) {
ret = -errno; ret = -errno;
printf("failed to open %s\n", temp); printf("failed to open %s\n", temp);
goto error_free; goto error_free;
@ -683,7 +683,7 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
if (verify) { if (verify) {
sysfsfp = fopen(temp, "r"); sysfsfp = fopen(temp, "r");
if (sysfsfp == NULL) { if (!sysfsfp) {
ret = -errno; ret = -errno;
printf("failed to open %s\n", temp); printf("failed to open %s\n", temp);
goto error_free; goto error_free;
@ -749,7 +749,7 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
FILE *sysfsfp; FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2); char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
if (temp == NULL) { if (!temp) {
printf("Memory allocation failed\n"); printf("Memory allocation failed\n");
return -ENOMEM; return -ENOMEM;
} }
@ -759,7 +759,7 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
goto error_free; goto error_free;
sysfsfp = fopen(temp, "w"); sysfsfp = fopen(temp, "w");
if (sysfsfp == NULL) { if (!sysfsfp) {
ret = -errno; ret = -errno;
printf("Could not open %s\n", temp); printf("Could not open %s\n", temp);
goto error_free; goto error_free;
@ -780,7 +780,7 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
if (verify) { if (verify) {
sysfsfp = fopen(temp, "r"); sysfsfp = fopen(temp, "r");
if (sysfsfp == NULL) { if (!sysfsfp) {
ret = -errno; ret = -errno;
printf("Could not open file to verify\n"); printf("Could not open file to verify\n");
goto error_free; goto error_free;
@ -855,7 +855,7 @@ int read_sysfs_posint(const char *filename, const char *basedir)
FILE *sysfsfp; FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2); char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
if (temp == NULL) { if (!temp) {
printf("Memory allocation failed"); printf("Memory allocation failed");
return -ENOMEM; return -ENOMEM;
} }
@ -865,7 +865,7 @@ int read_sysfs_posint(const char *filename, const char *basedir)
goto error_free; goto error_free;
sysfsfp = fopen(temp, "r"); sysfsfp = fopen(temp, "r");
if (sysfsfp == NULL) { if (!sysfsfp) {
ret = -errno; ret = -errno;
goto error_free; goto error_free;
} }
@ -902,7 +902,7 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val)
FILE *sysfsfp; FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2); char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
if (temp == NULL) { if (!temp) {
printf("Memory allocation failed"); printf("Memory allocation failed");
return -ENOMEM; return -ENOMEM;
} }
@ -912,7 +912,7 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val)
goto error_free; goto error_free;
sysfsfp = fopen(temp, "r"); sysfsfp = fopen(temp, "r");
if (sysfsfp == NULL) { if (!sysfsfp) {
ret = -errno; ret = -errno;
goto error_free; goto error_free;
} }
@ -949,7 +949,7 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str)
FILE *sysfsfp; FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2); char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
if (temp == NULL) { if (!temp) {
printf("Memory allocation failed"); printf("Memory allocation failed");
return -ENOMEM; return -ENOMEM;
} }
@ -959,7 +959,7 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str)
goto error_free; goto error_free;
sysfsfp = fopen(temp, "r"); sysfsfp = fopen(temp, "r");
if (sysfsfp == NULL) { if (!sysfsfp) {
ret = -errno; ret = -errno;
goto error_free; goto error_free;
} }

10
tools/iio/lsiio.c
View file

@ -46,10 +46,10 @@ static int dump_channels(const char *dev_dir_name)
const struct dirent *ent; const struct dirent *ent;
dp = opendir(dev_dir_name); dp = opendir(dev_dir_name);
if (dp == NULL) if (!dp)
return -errno; return -errno;
while (ent = readdir(dp), ent != NULL) while (ent = readdir(dp), ent)
if (check_prefix(ent->d_name, "in_") && 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); printf(" %-10s\n", ent->d_name);
@ -107,12 +107,12 @@ static int dump_devices(void)
DIR *dp; DIR *dp;
dp = opendir(iio_dir); dp = opendir(iio_dir);
if (dp == NULL) { if (!dp) {
printf("No industrial I/O devices available\n"); printf("No industrial I/O devices available\n");
return -ENODEV; return -ENODEV;
} }
while (ent = readdir(dp), ent != NULL) { while (ent = readdir(dp), ent) {
if (check_prefix(ent->d_name, type_device)) { if (check_prefix(ent->d_name, type_device)) {
char *dev_dir_name; char *dev_dir_name;
@ -134,7 +134,7 @@ static int dump_devices(void)
} }
} }
rewinddir(dp); rewinddir(dp);
while (ent = readdir(dp), ent != NULL) { while (ent = readdir(dp), ent) {
if (check_prefix(ent->d_name, type_trigger)) { if (check_prefix(ent->d_name, type_trigger)) {
char *dev_dir_name; char *dev_dir_name;