Am I doing this deallocate memory right?

struct CSVRow
{
	char** colData;
	int size;
};

struct CSVData
{
	struct CSVRow* rowData;
	int size;
};

/* Deallocates all entries of the given CSV Data */
void FreeCSVData(struct CSVData* target)
{
	/* variable declarations */
	int rowSize = 0, colSize = 0, i = 0, j = 0;
	
	/* checks for invalid input parameter */
	if (target == NULL)
		return;
	
	/* assign the row size of target to variable rowSize */
	rowSize = target->size;
	
	/* loop through the rows of CSVData */
	for (i = 0; i < rowSize; i++)
	{
		/* assign the row size of target to variable rowSize */
		colSize = target->rowData[i].size;
		/* loop through the column section of each specific rows */
		for (j = 0; j < colSize; j++)
		{
			/* assigning each column data with null */
			target->rowData[i].colData[j] = NULL;
			/* free each column data */
			free(target->rowData[i].colData[j]);
		}
		/* assigning each row of column data with null */
		target->rowData[i].colData = NULL;
		/* free each row of column data */
		free(target->rowData[i].colData);
	}
	/* lastly free all rows */
	free(target->rowData);
	/* notify upon success function execution */
	printf("Free CSVData success!\n");
	
	return;
}