[alsa-devel] [PATCH 8/8] ASoC: Intel: Allocate for the mailbox with max size

[Vinod Koul]

From: "Subhransu S. Prusty" <subhransu.s.prusty at intel.com>

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty at intel.com>
Signed-off-by: Vinod Koul <vinod.koul at intel.com>
---
 sound/soc/intel/common/sst-ipc.c | 15 +++++++++++++++
 sound/soc/intel/common/sst-ipc.h |  4 ++--
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/sound/soc/intel/common/sst-ipc.c b/sound/soc/intel/common/sst-ipc.c
index a7699f35a8d2..137bdfc35063 100644
--- a/sound/soc/intel/common/sst-ipc.c
+++ b/sound/soc/intel/common/sst-ipc.c
@@ -128,6 +128,21 @@ static int msg_empty_list_init(struct sst_generic_ipc *ipc)
 	if (ipc->msg == NULL)
 		return -ENOMEM;
 
+	ipc->msg->tx_data = devm_kzalloc(ipc->dev,
+			sizeof(ipc->tx_data_max_size), GFP_KERNEL);
+	if (ipc->msg->tx_data == NULL) {
+		kfree(ipc->msg);
+		return -ENOMEM;
+	}
+
+	ipc->msg->rx_data = devm_kzalloc(ipc->dev,
+			sizeof(ipc->rx_data_max_size), GFP_KERNEL);
+	if (ipc->msg->rx_data == NULL) {
+		kfree(ipc->msg->tx_data);
+		kfree(ipc->msg);
+		return -ENOMEM;
+	}
+
 	for (i = 0; i < IPC_EMPTY_LIST_SIZE; i++) {
 		init_waitqueue_head(&ipc->msg[i].waitq);
 		list_add(&ipc->msg[i].list, &ipc->empty_list);
diff --git a/sound/soc/intel/common/sst-ipc.h b/sound/soc/intel/common/sst-ipc.h
index 7139afd2547f..ceb7e468a3fa 100644
--- a/sound/soc/intel/common/sst-ipc.h
+++ b/sound/soc/intel/common/sst-ipc.h
@@ -32,9 +32,9 @@ struct ipc_message {
 	u64 header;
 
 	/* direction wrt host CPU */
-	char tx_data[IPC_MAX_MAILBOX_BYTES];
+	char *tx_data;
 	size_t tx_size;
-	char rx_data[IPC_MAX_MAILBOX_BYTES];
+	char *rx_data;
 	size_t rx_size;
 
 	wait_queue_head_t waitq;
-- 
1.9.1