bluez: AVDTP: Fix errno handling convention

Variables which are assigned to the errno variable (usually called
"err") should be negative, and "-err" should be used where a positive
value is needed.

diff --git a/sys/bluez/gstavdtpsink.c b/sys/bluez/gstavdtpsink.c
index 5ab5ca2..9603c1f 100644 (file)
--- a/sys/bluez/gstavdtpsink.c
+++ b/sys/bluez/gstavdtpsink.c
@@ -282,10 +282,10 @@ gst_avdtp_sink_bluetooth_recvmsg_fd (GstAvdtpSink * sink)
   ret = bt_audio_service_get_data_fd (g_io_channel_unix_get_fd (sink->server));
 
   if (ret < 0) {
-    err = errno;
+    err = -errno;
     GST_ERROR_OBJECT (sink, "Unable to receive fd: %s (%d)",
-        strerror (err), err);
-    return -err;
+        strerror (-err), -err);
+    return err;
   }
 
   sink->stream = g_io_channel_unix_new (ret);
@@ -1441,9 +1441,9 @@ gst_avdtp_sink_start (GstBaseSink * basesink)
 
   sk = bt_audio_service_open ();
   if (sk <= 0) {
-    err = errno;
+    err = -errno;
     GST_ERROR_OBJECT (self, "Cannot open connection to bt "
-        "audio service: %s %d", strerror (err), err);
+        "audio service: %s %d", strerror (-err), -err);
     goto failed;
   }
 
@@ -1811,7 +1811,7 @@ gst_avdtp_sink_audioservice_send (GstAvdtpSink * self,
   ssize_t written;
   const char *type, *name;
   uint16_t length;
-  int fd;
+  int fd, err;
 
   length = msg->length ? msg->length : BT_SUGGESTED_BUFFER_SIZE;
 
@@ -1819,9 +1819,10 @@ gst_avdtp_sink_audioservice_send (GstAvdtpSink * self,
 
   written = write (fd, msg, length);
   if (written < 0) {
+    err = -errno;
     GST_ERROR_OBJECT (self, "Error sending data to audio service:"
-        " %s", strerror (errno));
-    return -errno;
+        " %s", strerror (-err));
+    return err;
   }
 
   type = bt_audio_strtype (msg->type);
@@ -1847,9 +1848,10 @@ gst_avdtp_sink_audioservice_recv (GstAvdtpSink * self,
 
   bytes_read = read (fd, inmsg, length);
   if (bytes_read < 0) {
+    err = -errno;
     GST_ERROR_OBJECT (self, "Error receiving data from "
-        "audio service: %s", strerror (errno));
-    return -errno;
+        "audio service: %s", strerror (-err));
+    return err;
   }
 
   type = bt_audio_strtype (inmsg->type);