[PATCH] staging: greybus: split gb_audio_gb_get_topology()

[Khaled Saleh <khaled.saleh.req@gmail.com>]

Split gb_audio_gb_get_topology() into smaller helper functions
to improve readability and maintainability.

No functional change intended.

Signed-off-by: Khaled Saleh <khaled.saleh.req@gmail.com>
---
 drivers/staging/greybus/audio_gb.c | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/greybus/audio_gb.c b/drivers/staging/greybus/audio_gb.c
index 9d8994fdb41a..b5ead09532c8 100644
--- a/drivers/staging/greybus/audio_gb.c
+++ b/drivers/staging/greybus/audio_gb.c
@@ -8,13 +8,10 @@
 #include <linux/greybus.h>
 #include "audio_codec.h"
 
-/* TODO: Split into separate calls */
-int gb_audio_gb_get_topology(struct gb_connection *connection,
-			     struct gb_audio_topology **topology)
+static int gb_audio_gb_get_topology_size(struct gb_connection *connection,
+					 u16 *size)
 {
 	struct gb_audio_get_topology_size_response size_resp;
-	struct gb_audio_topology *topo;
-	u16 size;
 	int ret;
 
 	ret = gb_operation_sync(connection, GB_AUDIO_TYPE_GET_TOPOLOGY_SIZE,
@@ -22,10 +19,24 @@ int gb_audio_gb_get_topology(struct gb_connection *connection,
 	if (ret)
 		return ret;
 
-	size = le16_to_cpu(size_resp.size);
-	if (size < sizeof(*topo))
+	*size = le16_to_cpu(size_resp.size);
+	if (*size < sizeof(struct gb_audio_topology))
 		return -ENODATA;
 
+	return 0;
+}
+
+int gb_audio_gb_get_topology(struct gb_connection *connection,
+			     struct gb_audio_topology **topology)
+{
+	struct gb_audio_topology *topo;
+	u16 size;
+	int ret;
+
+	ret = gb_audio_gb_get_topology_size(connection, &size);
+	if (ret)
+		return ret;
+
 	topo = kzalloc(size, GFP_KERNEL);
 	if (!topo)
 		return -ENOMEM;
-- 
2.34.1