[RFC 03/12] bluetooth: Handle configuration failures more gracefully

[frederic.dalleau@xxxxxxxxxxxxxxx (Frédéric Dalleau)]

From: Arun Raghavan <arun.raghavan@xxxxxxxxxxxxxxx>

This should help make configuration failures not necessitate a
bluetoothd restart.
---
 src/modules/bluetooth/module-bluetooth-device.c |   50 +++++++++++++----------
 1 files changed, 28 insertions(+), 22 deletions(-)

diff --git a/src/modules/bluetooth/module-bluetooth-device.c b/src/modules/bluetooth/module-bluetooth-device.c
index 6b97191..9e7ddde 100644
--- a/src/modules/bluetooth/module-bluetooth-device.c
+++ b/src/modules/bluetooth/module-bluetooth-device.c
@@ -545,6 +545,28 @@ static int get_caps(struct userdata *u, uint8_t seid) {
     return 0;
 }
 
+static int close_stream(struct userdata *u) {
+    union {
+        struct bt_close_req close_req;
+        struct bt_close_rsp close_rsp;
+        bt_audio_error_t error;
+        uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
+    } msg;
+
+    memset(&msg, 0, sizeof(msg));
+    msg.close_req.h.type = BT_REQUEST;
+    msg.close_req.h.name = BT_CLOSE;
+    msg.close_req.h.length = sizeof(msg.close_req);
+
+    if (service_send(u, &msg.close_req.h) < 0)
+        return -1;
+
+    if (service_expect(u, &msg.close_rsp.h, sizeof(msg), BT_CLOSE, sizeof(msg.close_rsp)) < 0)
+        return -1;
+
+    return 0;
+}
+
 /* Run from main thread */
 static uint8_t a2dp_default_bitpool(uint8_t freq, uint8_t mode) {
 
@@ -902,11 +924,15 @@ static int set_conf(struct userdata *u) {
     }
     msg.setconf_req.h.length += msg.setconf_req.codec.length - sizeof(msg.setconf_req.codec);
 
-    if (service_send(u, &msg.setconf_req.h) < 0)
+    if (service_send(u, &msg.setconf_req.h) < 0) {
+        close_stream(u);
         return -1;
+    }
 
-    if (service_expect(u, &msg.setconf_rsp.h, sizeof(msg), BT_SET_CONFIGURATION, sizeof(msg.setconf_rsp)) < 0)
+    if (service_expect(u, &msg.setconf_rsp.h, sizeof(msg), BT_SET_CONFIGURATION, sizeof(msg.setconf_rsp)) < 0) {
+        close_stream(u);
         return -1;
+    }
 
     u->link_mtu = msg.setconf_rsp.link_mtu;
 
@@ -1083,26 +1109,6 @@ static int stop_stream_fd(struct userdata *u) {
     return r;
 }
 
-static int close_stream(struct userdata *u) {
-    union {
-        struct bt_close_req close_req;
-        struct bt_close_rsp close_rsp;
-        bt_audio_error_t error;
-        uint8_t buf[BT_SUGGESTED_BUFFER_SIZE];
-    } msg;
-
-    memset(&msg, 0, sizeof(msg));
-    msg.close_req.h.type = BT_REQUEST;
-    msg.close_req.h.name = BT_CLOSE;
-    msg.close_req.h.length = sizeof(msg.close_req);
-
-    if (service_send(u, &msg.close_req.h) < 0)
-        return -1;
-
-    if (service_expect(u, &msg.close_rsp.h, sizeof(msg), BT_CLOSE, sizeof(msg.close_rsp)) < 0)
-        return -1;
-}
-
 static void bt_transport_release(struct userdata *u) {
     const char *accesstype = "rw";
     const pa_bluetooth_transport *t;
-- 
1.7.5.4