ALSA: hda: cs35l41: Check mailbox status of pause command after firmware load

Currently, we do not check the return status of the pause command,
immediately after we load firmware. If the pause has failed,
the firmware is not running.
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230721151816.2080453-4-sbinding@opensource.cirrus.comSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/cs35l41_hda.c

@@ -781,7 +781,12 @@ static int cs35l41_smart_amp(struct cs35l41_hda *cs35l41)
 		goto clean_dsp;
 	}
 
-	cs35l41_set_cspl_mbox_cmd(cs35l41->dev, cs35l41->regmap, CSPL_MBOX_CMD_PAUSE);
+	ret = cs35l41_set_cspl_mbox_cmd(cs35l41->dev, cs35l41->regmap, CSPL_MBOX_CMD_PAUSE);
+	if (ret) {
+		dev_err(cs35l41->dev, "Error waiting for DSP to pause: %u\n", ret);
+		goto clean_dsp;
+	}
+
 	cs35l41->firmware_running = true;
 
 	return 0;