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Date: Mon, 13 Jul 2015 16:15:56 +0300
From: Cristina Opriceana <cristina.opriceana@...il.com>
To: jic23@...nel.org
Cc: knaack.h@....de, lars@...afoo.de, pmeerw@...erw.net,
linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
daniel.baluta@...el.com, octavian.purdila@...el.com
Subject: [PATCH 1/3] tools: iio: Remove explicit NULL comparison
Remove explicit NULL comparison and write it in its simpler form as
recommended by checkpatch.pl.
Signed-off-by: Cristina Opriceana <cristina.opriceana@...il.com>
---
tools/iio/generic_buffer.c | 4 ++--
tools/iio/iio_utils.c | 56 +++++++++++++++++++++++-----------------------
tools/iio/lsiio.c | 10 ++++-----
3 files changed, 35 insertions(+), 35 deletions(-)
diff --git a/tools/iio/generic_buffer.c b/tools/iio/generic_buffer.c
index 0e73723..9535c2d 100644
--- a/tools/iio/generic_buffer.c
+++ b/tools/iio/generic_buffer.c
@@ -270,7 +270,7 @@ int main(int argc, char **argv)
}
}
- if (device_name == NULL) {
+ if (!device_name) {
printf("Device name not set\n");
print_usage();
return -1;
@@ -290,7 +290,7 @@ int main(int argc, char **argv)
return -ENOMEM;
if (!notrigger) {
- if (trigger_name == NULL) {
+ if (!trigger_name) {
/*
* Build the trigger name. If it is device associated
* its name is <device_name>_dev[n] where n matches
diff --git a/tools/iio/iio_utils.c b/tools/iio/iio_utils.c
index 8fb3214..4a7e480 100644
--- a/tools/iio/iio_utils.c
+++ b/tools/iio/iio_utils.c
@@ -117,13 +117,13 @@ int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
}
dp = opendir(scan_el_dir);
- if (dp == NULL) {
+ if (!dp) {
ret = -errno;
goto error_free_builtname_generic;
}
ret = -ENOENT;
- while (ent = readdir(dp), ent != NULL)
+ while (ent = readdir(dp), ent)
/*
* Do we allow devices to override a generic name with
* a specific one?
@@ -138,7 +138,7 @@ int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
}
sysfsfp = fopen(filename, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
printf("failed to open %s\n", filename);
goto error_free_filename;
@@ -235,13 +235,13 @@ int iioutils_get_param_float(float *output, const char *param_name,
}
dp = opendir(device_dir);
- if (dp == NULL) {
+ if (!dp) {
ret = -errno;
goto error_free_builtname_generic;
}
ret = -ENOENT;
- while (ent = readdir(dp), ent != NULL)
+ while (ent = readdir(dp), ent)
if ((strcmp(builtname, ent->d_name) == 0) ||
(strcmp(builtname_generic, ent->d_name) == 0)) {
ret = asprintf(&filename,
@@ -325,12 +325,12 @@ int build_channel_array(const char *device_dir,
return -ENOMEM;
dp = opendir(scan_el_dir);
- if (dp == NULL) {
+ if (!dp) {
ret = -errno;
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"),
"_en") == 0) {
ret = asprintf(&filename,
@@ -341,7 +341,7 @@ int build_channel_array(const char *device_dir,
}
sysfsfp = fopen(filename, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
free(filename);
goto error_close_dir;
@@ -369,13 +369,13 @@ int build_channel_array(const char *device_dir,
}
*ci_array = malloc(sizeof(**ci_array) * (*counter));
- if (*ci_array == NULL) {
+ if (!*ci_array) {
ret = -ENOMEM;
goto error_close_dir;
}
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"),
"_en") == 0) {
int current_enabled = 0;
@@ -391,7 +391,7 @@ int build_channel_array(const char *device_dir,
}
sysfsfp = fopen(filename, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
free(filename);
count--;
@@ -424,7 +424,7 @@ int build_channel_array(const char *device_dir,
current->name = strndup(ent->d_name,
strlen(ent->d_name) -
strlen("_en"));
- if (current->name == NULL) {
+ if (!current->name) {
free(filename);
ret = -ENOMEM;
count--;
@@ -452,7 +452,7 @@ int build_channel_array(const char *device_dir,
}
sysfsfp = fopen(filename, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
printf("failed to open %s\n", filename);
free(filename);
@@ -567,12 +567,12 @@ int find_type_by_name(const char *name, const char *type)
char *filename;
dp = opendir(iio_dir);
- if (dp == NULL) {
+ if (!dp) {
printf("No industrialio devices available\n");
return -ENODEV;
}
- while (ent = readdir(dp), ent != NULL) {
+ while (ent = readdir(dp), ent) {
if (strcmp(ent->d_name, ".") != 0 &&
strcmp(ent->d_name, "..") != 0 &&
strlen(ent->d_name) > strlen(type) &&
@@ -595,7 +595,7 @@ int find_type_by_name(const char *name, const char *type)
":", 1) != 0) {
filename = malloc(strlen(iio_dir) + strlen(type)
+ numstrlen + 6);
- if (filename == NULL) {
+ if (!filename) {
ret = -ENOMEM;
goto error_close_dir;
}
@@ -654,7 +654,7 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
int test;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL)
+ if (!temp)
return -ENOMEM;
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;
sysfsfp = fopen(temp, "w");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
printf("failed to open %s\n", temp);
goto error_free;
@@ -683,7 +683,7 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
if (verify) {
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
printf("failed to open %s\n", temp);
goto error_free;
@@ -749,7 +749,7 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL) {
+ if (!temp) {
printf("Memory allocation failed\n");
return -ENOMEM;
}
@@ -759,7 +759,7 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
goto error_free;
sysfsfp = fopen(temp, "w");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
printf("Could not open %s\n", temp);
goto error_free;
@@ -780,7 +780,7 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
if (verify) {
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
printf("Could not open file to verify\n");
goto error_free;
@@ -855,7 +855,7 @@ int read_sysfs_posint(const char *filename, const char *basedir)
FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL) {
+ if (!temp) {
printf("Memory allocation failed");
return -ENOMEM;
}
@@ -865,7 +865,7 @@ int read_sysfs_posint(const char *filename, const char *basedir)
goto error_free;
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
goto error_free;
}
@@ -902,7 +902,7 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val)
FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL) {
+ if (!temp) {
printf("Memory allocation failed");
return -ENOMEM;
}
@@ -912,7 +912,7 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val)
goto error_free;
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
goto error_free;
}
@@ -949,7 +949,7 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str)
FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL) {
+ if (!temp) {
printf("Memory allocation failed");
return -ENOMEM;
}
@@ -959,7 +959,7 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str)
goto error_free;
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
goto error_free;
}
diff --git a/tools/iio/lsiio.c b/tools/iio/lsiio.c
index 7f432a5..4f8172f 100644
--- a/tools/iio/lsiio.c
+++ b/tools/iio/lsiio.c
@@ -46,10 +46,10 @@ static int dump_channels(const char *dev_dir_name)
const struct dirent *ent;
dp = opendir(dev_dir_name);
- if (dp == NULL)
+ if (!dp)
return -errno;
- while (ent = readdir(dp), ent != NULL)
+ while (ent = readdir(dp), ent)
if (check_prefix(ent->d_name, "in_") &&
check_postfix(ent->d_name, "_raw"))
printf(" %-10s\n", ent->d_name);
@@ -107,12 +107,12 @@ static int dump_devices(void)
DIR *dp;
dp = opendir(iio_dir);
- if (dp == NULL) {
+ if (!dp) {
printf("No industrial I/O devices available\n");
return -ENODEV;
}
- while (ent = readdir(dp), ent != NULL) {
+ while (ent = readdir(dp), ent) {
if (check_prefix(ent->d_name, type_device)) {
char *dev_dir_name;
@@ -134,7 +134,7 @@ static int dump_devices(void)
}
}
rewinddir(dp);
- while (ent = readdir(dp), ent != NULL) {
+ while (ent = readdir(dp), ent) {
if (check_prefix(ent->d_name, type_trigger)) {
char *dev_dir_name;
--
1.9.1
--
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