From ff1ac639b395d58bbd99ff4a36b10eebb81544a3 Mon Sep 17 00:00:00 2001 From: Cristina Opriceana Date: Mon, 13 Jul 2015 16:15:56 +0300 Subject: 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 Reviewed-by: Hartmut Knaack Signed-off-by: Jonathan Cameron --- tools/iio/generic_buffer.c | 4 ++-- tools/iio/iio_utils.c | 56 +++++++++++++++++++++++----------------------- tools/iio/lsiio.c | 10 ++++----- 3 files changed, 35 insertions(+), 35 deletions(-) (limited to 'tools/iio') diff --git a/tools/iio/generic_buffer.c b/tools/iio/generic_buffer.c index 0e737238ca74..9535c2dc25af 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 _dev[n] where n matches diff --git a/tools/iio/iio_utils.c b/tools/iio/iio_utils.c index 8fb3214c70f2..4a7e4801cebf 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 7f432a55a6c4..4f8172fe7881 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; -- cgit v1.2.3-59-g8ed1b