[PATCH BlueZ v1] shared/rap: Fix step payload pointer in parse_step

[Prathibha Madugonde <prathibha.madugonde@oss.qualcomm.com>]

From: Prathibha Madugonde <prathibha.madugonde@oss.qualcomm.com>

util_iov_pull advances iov_base before returning the new pointer, so
mode_iov.iov_base was set to the start of the *next* step's data.
Every step was therefore parsed using its successor's bytes.

Switch to util_iov_pull_mem which saves the original base, advances
iov, and returns the pre-advance pointer — correctly pointing to the
current step's payload.
---
 src/shared/rap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/shared/rap.c b/src/shared/rap.c
index ecf7df5a7..dfb272d3a 100644
--- a/src/shared/rap.c
+++ b/src/shared/rap.c
@@ -2326,7 +2326,7 @@ static bool parse_step(struct bt_rap *rap, struct iovec *iov,
 	DBG(rap, "  Step %u: mode=%u payload_len=%zu",
 	    step_idx, step_mode, step_payload_len);
 
-	payload = util_iov_pull(iov, step_payload_len);
+	payload = util_iov_pull_mem(iov, step_payload_len);
 	if (!payload) {
 		DBG(rap, "Insufficient data for step %u payload "
 			"(need %zu, have %zu)",
-- 
2.34.1