buffer_tree: Improve btr_splice_out_node().
[paraslash.git] / wav_filter.c
index 716d8dd..eaef1f5 100644 (file)
@@ -74,7 +74,7 @@ static void wav_pre_select(struct sched *s, struct task *t)
        sched_min_delay(s);
 }
 
-static void wav_post_select(__a_unused struct sched *s, struct task *t)
+static int wav_post_select(__a_unused struct sched *s, struct task *t)
 {
        struct filter_node *fn = container_of(t, struct filter_node, task);
        struct btr_node *btrn = fn->btrn;
@@ -83,12 +83,11 @@ static void wav_post_select(__a_unused struct sched *s, struct task *t)
        char *header, *buf;
        int32_t rate, ch;
 
-       t->error = 0;
        if (iqs == 0) {
                ret = -E_WAV_EOF;
                if (btr_no_parent(btrn))
                        goto err;
-               return;
+               return 0;
        }
        ret = btr_exec_up(btrn, "sample_rate", &buf);
        if (ret < 0) {
@@ -113,13 +112,13 @@ static void wav_post_select(__a_unused struct sched *s, struct task *t)
        btr_add_output(header, WAV_HEADER_LEN, btrn);
        ret = -E_WAV_SUCCESS;
 err:
-       t->error = ret;
        if (ret == -E_WAV_SUCCESS)
-               btr_splice_out_node(btrn);
+               btr_splice_out_node(&fn->btrn);
        else {
                btr_remove_node(&fn->btrn);
                PARA_ERROR_LOG("%s\n", para_strerror(-ret));
        }
+       return ret;
 }
 
 /**