#include <kernel/fs/smemfs.h>

/* smemfs_find_parent() - Return the parent inode */
void *smemfs_find_parent(void *inode)
{
	extern struct smemfs_superblock_s smemfs_superblock;
	uint16_t folder_id;

	// Check error.
	if (inode == NULL)
		return (NULL);

	// Check root inode
	if (inode == smemfs_superblock.sector_table)
		return (NULL);

	// Check inode validity
	if (((struct casio_smem_header_s *)inode)->info != CASIO_SMEM_HEADER_INFO_EXIST)
		return (NULL);

	// Get parent ID.
	folder_id = ((struct casio_smem_header_s *)inode)->parent.id;

	// Return first inode find
	return (smemfs_walk(inode, smemfs_superblock.inode_table, folder_id,
				WALK_FLAG_ID_CHECK_DIRECTORY));
}