ASoC: Intel: bxt_rt298: Fix kernel ops due to COMP_DUMMY change

The change to avoid dummy components will leave the component name and
dai_name NULL which will cause NULL dereference when trying to access to
it in the machine driver when applying fixups.

Link: thesofproject/linux#4759 (comment)
Fixes: 13f5826 ("ASoC: soc.h: don't create dummy Component via COMP_DUMMY()")
Signed-off-by: Peter Ujfalusi <[email protected]>
Reviewed-by: Bard Liao <[email protected]>
Reviewed-by: Pierre-Louis Bossart <[email protected]>
Link: https://msgid.link/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: ujfalusi

sound/soc/intel/boards/bxt_rt298.c

@@ -604,7 +604,8 @@ static int broxton_audio_probe(struct platform_device *pdev)
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(broxton_rt298_dais); i++) {
-		if (!strncmp(card->dai_link[i].codecs->name, "i2c-INT343A:00",
+		if (card->dai_link[i].codecs->name &&
+		    !strncmp(card->dai_link[i].codecs->name, "i2c-INT343A:00",
 			     I2C_NAME_SIZE)) {
 			if (!strncmp(card->name, "broxton-rt298",
 				     PLATFORM_NAME_SIZE)) {