ASoC: SOF: Intel: hda: add sanity check on SSP index reported by NHLT

We should have a limited trust in the BIOS and verify that the SSP
index reported in NHLT is valid for each platform.

Signed-off-by: Pierre-Louis Bossart <[e-mail]>
Reviewed-by: Ranjani Sridharan <[e-mail]>
Reviewed-by: Bard Liao <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/sof/intel/hda.c

···
 		if (tplg_fixup &&
 		    mach->tplg_quirk_mask & SND_SOC_ACPI_TPLG_INTEL_SSP_NUMBER &&
 		    mach->mach_params.i2s_link_mask) {
+			const struct sof_intel_dsp_desc *chip = get_chip_info(sdev->pdata);
 			int ssp_num;
 
 			if (hweight_long(mach->mach_params.i2s_link_mask) > 1 &&
···
 
 			/* fls returns 1-based results, SSPs indices are 0-based */
 			ssp_num = fls(mach->mach_params.i2s_link_mask) - 1;
+
+			if (ssp_num >= chip->ssp_count) {
+				dev_err(sdev->dev, "Invalid SSP %d, max on this platform is %d\n",
+					ssp_num, chip->ssp_count);
+				return NULL;
+			}
 
 			tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL,
 						       "%s%s%d",