analog: Get GString content from proper API call

Use the g_string_free() routine's return value instead of pulling the
string content out of the buffer structure bypassing the library's API.

Signed-off-by: Marek Vasut <redacted>

diff --git a/src/analog.c b/src/analog.c
index f5cc628500138f5a5dd901b3240629abbaf8dbfb..76ea659caf99ec54a33813a023c2d6a6f51279c8 100644 (file)
--- a/src/analog.c
+++ b/src/analog.c
@@ -492,8 +492,7 @@ SR_API int sr_analog_unit_to_string(const struct sr_datafeed_analog *analog,
                if (analog->meaning->mqflags & mq_strings[i].value)
                        g_string_append(buf, mq_strings[i].str);
 
-       *result = buf->str;
-       g_string_free(buf, FALSE);
+       *result = g_string_free(buf, FALSE);
 
        return SR_OK;
 }