static void cqspi_config_baudrate_div(struct cqspi_st *cqspi)
{
	const unsigned int ref_clk_hz = cqspi->master_ref_clk_hz;
	void __iomem *reg_base = cqspi->iobase;
	u32 reg, div;

	/* Recalculate the baudrate divisor based on QSPI specification. */
	div = DIV_ROUND_UP(ref_clk_hz, 2 * cqspi->sclk) - 1;

	reg = readl(reg_base + CQSPI_REG_CONFIG);
	reg &= ~(CQSPI_REG_CONFIG_BAUD_MASK << CQSPI_REG_CONFIG_BAUD_LSB);
	reg |= (div & CQSPI_REG_CONFIG_BAUD_MASK) << CQSPI_REG_CONFIG_BAUD_LSB;
	writel(reg, reg_base + CQSPI_REG_CONFIG);
}

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.