static void cqspi_configure(struct spi_nor *nor)
{
	struct cqspi_flash_pdata *f_pdata = nor->priv;
	struct cqspi_st *cqspi = f_pdata->cqspi;
	const unsigned int sclk = f_pdata->clk_rate;
	int switch_cs = (cqspi->current_cs != f_pdata->cs);
	int switch_ck = (cqspi->sclk != sclk);

	if ((cqspi->current_page_size != nor->page_size) ||
	    (cqspi->current_erase_size != nor->mtd.erasesize) ||
	    (cqspi->current_addr_width != nor->addr_width))
		switch_cs = 1;

	if (switch_cs || switch_ck)
		cqspi_controller_enable(cqspi, 0);

	/* Switch chip select. */
	if (switch_cs) {
		cqspi->current_cs = f_pdata->cs;
		cqspi_configure_cs_and_sizes(nor);
	}

	/* Setup baudrate divisor and delays */
	if (switch_ck) {
		cqspi->sclk = sclk;
		cqspi_config_baudrate_div(cqspi);
		cqspi_delay(nor);
		cqspi_readdata_capture(cqspi, 1, f_pdata->read_delay);
	}

	if (switch_cs || switch_ck)
		cqspi_controller_enable(cqspi, 1);
}

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.