static void cqspi_delay(struct spi_nor *nor)
{
	struct cqspi_flash_pdata *f_pdata = nor->priv;
	struct cqspi_st *cqspi = f_pdata->cqspi;
	void __iomem *iobase = cqspi->iobase;
	const unsigned int ref_clk_hz = cqspi->master_ref_clk_hz;
	unsigned int tshsl, tchsh, tslch, tsd2d;
	unsigned int reg;
	unsigned int tsclk;

	/* calculate the number of ref ticks for one sclk tick */
	tsclk = DIV_ROUND_UP(ref_clk_hz, cqspi->sclk);

	tshsl = calculate_ticks_for_ns(ref_clk_hz, f_pdata->tshsl_ns);
	/* this particular value must be at least one sclk */
	if (tshsl < tsclk)
		tshsl = tsclk;

	tchsh = calculate_ticks_for_ns(ref_clk_hz, f_pdata->tchsh_ns);
	tslch = calculate_ticks_for_ns(ref_clk_hz, f_pdata->tslch_ns);
	tsd2d = calculate_ticks_for_ns(ref_clk_hz, f_pdata->tsd2d_ns);

	reg = (tshsl & CQSPI_REG_DELAY_TSHSL_MASK)
	       << CQSPI_REG_DELAY_TSHSL_LSB;
	reg |= (tchsh & CQSPI_REG_DELAY_TCHSH_MASK)
		<< CQSPI_REG_DELAY_TCHSH_LSB;
	reg |= (tslch & CQSPI_REG_DELAY_TSLCH_MASK)
		<< CQSPI_REG_DELAY_TSLCH_LSB;
	reg |= (tsd2d & CQSPI_REG_DELAY_TSD2D_MASK)
		<< CQSPI_REG_DELAY_TSD2D_LSB;
	writel(reg, iobase + CQSPI_REG_DELAY);
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.