device: introduce common helpers for channel group allocation

[libsigrok.git] / src / output / csv.c

diff --git a/src/output/csv.c b/src/output/csv.c
index 49d6eb6ec457ea2b211aaab4e897cbd72ce4566c..848595f9d3096b9570fcd0e5505e2d1026ea1250 100644 (file)
--- a/src/output/csv.c
+++ b/src/output/csv.c
@@ -420,7 +420,8 @@ static void dump_saved_values(struct context *ctx, GString **out)
        } else {
                sr_info("Dumping %u samples", ctx->num_samples);
 
-               *out = g_string_sized_new(512);
+               if (!*out)
+                       *out = g_string_sized_new(512);
                num_channels =
                    ctx->num_logic_channels + ctx->num_analog_channels;
 
@@ -678,6 +679,7 @@ static int receive(const struct sr_output *o,
                ctx->trigger = TRUE;
                break;
        case SR_DF_LOGIC:
+               *out = g_string_sized_new(512);
                logic = packet->payload;
                ctx->pkt_snums = logic->length;
                ctx->pkt_snums /= logic->length;
@@ -685,6 +687,7 @@ static int receive(const struct sr_output *o,
                process_logic(ctx, logic);
                break;
        case SR_DF_ANALOG:
+               *out = g_string_sized_new(512);
                analog = packet->payload;
                ctx->pkt_snums = analog->num_samples;
                ctx->pkt_snums /= g_slist_length(analog->meaning->channels);