diff options
Diffstat (limited to 'cmd/systool.c')
| -rw-r--r-- | cmd/systool.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/cmd/systool.c b/cmd/systool.c index 1bd0137..d3f938a 100644 --- a/cmd/systool.c +++ b/cmd/systool.c @@ -617,8 +617,8 @@ static int show_default_info(void) fprintf(stdout, "Supported sysfs buses:\n"); dlist_for_each_data(list, cur, char) fprintf(stdout, "\t%s\n", cur); + sysfs_close_list(list); } - sysfs_close_list(list); safestrcpy(subsys, SYSFS_CLASS_NAME); list = sysfs_open_subsystem_list(subsys); @@ -626,8 +626,8 @@ static int show_default_info(void) fprintf(stdout, "Supported sysfs classes:\n"); dlist_for_each_data(list, cur, char) fprintf(stdout, "\t%s\n", cur); + sysfs_close_list(list); } - sysfs_close_list(list); safestrcpy(subsys, SYSFS_DEVICES_NAME); list = sysfs_open_subsystem_list(subsys); @@ -635,12 +635,25 @@ static int show_default_info(void) fprintf(stdout, "Supported sysfs devices:\n"); dlist_for_each_data(list, cur, char) fprintf(stdout, "\t%s\n", cur); + sysfs_close_list(list); } - sysfs_close_list(list); return retval; } +/** + * check_sysfs_mounted: Checks to see if sysfs is mounted. + * returns 0 if not and 1 if true. + */ +static int check_sysfs_is_mounted(void) +{ + char path[SYSFS_PATH_MAX]; + + if (sysfs_get_mnt_path(path, SYSFS_PATH_MAX) != 0) + return 0; + return 1; +} + /* MAIN */ int main(int argc, char *argv[]) { @@ -724,6 +737,11 @@ int main(int argc, char *argv[]) exit(1); } + if (check_sysfs_is_mounted() == 0) { + fprintf(stderr, "Unable to find sysfs mount point!\n"); + exit(1); + } + if ((show_bus == NULL && show_class == NULL && show_root == NULL) && (show_options & (SHOW_ATTRIBUTES | SHOW_ATTRIBUTE_VALUE | SHOW_DEVICES | |