167 static RK_S32 find_dir_in_path(char *path, const char *dir_name,  in find_dir_in_path()  argument
171     RK_S32 path_len = strnlen(path, max_length);  in find_dir_in_path()
178     n = scandir(path, &dir, _compare_name, alphasort);  in find_dir_in_path()
180         mpp_log("scan %s for %s return %d\n", path, dir_name, n);  in find_dir_in_path()
185         new_path_len += snprintf(path + path_len, max_length - path_len - 1,  in find_dir_in_path()
203     char path[MAX_PATH_NAME_SIZE];  in check_sysfs_iommu()  local
222         snprintf(path, sizeof(path), "/proc/device-tree");  in check_sysfs_iommu()
223         if (find_dir_in_path(path, dts_devices[i], sizeof(path))) {  in check_sysfs_iommu()
224             if (find_dir_in_path(path, "iommu_enabled", sizeof(path))) {  in check_sysfs_iommu()
225                 FILE *iommu_fp = fopen(path, "rb");  in check_sysfs_iommu()
244             snprintf(path, sizeof(path), "/sys/kernel/debug/ion/heaps");  in check_sysfs_iommu()
245             if (find_dir_in_path(path, system_heaps[i], sizeof(path))) {  in check_sysfs_iommu()