From defad9d2e2703b040c3a001978c09c75970357f0 Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Date: Tue, 5 Apr 2022 10:27:02 -0700
Subject: [PATCH] ASoC: SOF: ipc: Add check for mandatory IPC message handling ops
Git-commit: defad9d2e2703b040c3a001978c09c75970357f0
Patch-mainline: v5.19-rc1
References: jsc#PED-850

Make sure that the mandatory IPC message handling ops are provided by the
IPC implementation.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220405172708.122168-10-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/sof/ipc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/sof/ipc.c b/sound/soc/sof/ipc.c
index 4966a2a41704..d11c5e6e57fb 100644
--- a/sound/soc/sof/ipc.c
+++ b/sound/soc/sof/ipc.c
@@ -1066,6 +1066,11 @@ struct snd_sof_ipc *snd_sof_ipc_init(struct snd_sof_dev *sdev)
 	ops = ipc->ops;
 
 	/* check for mandatory ops */
+	if (!ops->tx_msg || !ops->rx_msg || !ops->set_get_data || !ops->get_reply) {
+		dev_err(sdev->dev, "Missing IPC message handling ops\n");
+		return NULL;
+	}
+
 	if (!ops->pcm) {
 		dev_err(sdev->dev, "Missing IPC PCM ops\n");
 		return NULL;
-- 
2.35.3