alsamidisrc: Fix a memory leak when setting the "ports" property

When setting the "ports" property the value is duplicated but it's not
freed when the elements stops.

Reported by Valgrind (example run with "alsamidisrc ports=128:0"):

  6 bytes in 1 blocks are definitely lost in loss record 30 of 1,911
     at 0x4C2BBEF: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
     by 0x5411528: g_malloc (gmem.c:94)
     by 0x542A9FE: g_strdup (gstrfuncs.c:363)
     by 0x775211E: gst_alsa_midi_src_set_property (gstalsamidisrc.c:284)
     by 0x5184A4D: object_set_property (gobject.c:1439)
     by 0x5184A4D: g_object_setv (gobject.c:2245)
     by 0x51859DD: g_object_set_property (gobject.c:2529)
     by 0x4F0474C: ??? (in /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0.1203.0)
     by 0x4F065C8: ??? (in /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0.1203.0)
     by 0x4F07557: ??? (in /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0.1203.0)
     by 0x4EFE3EE: gst_parse_launch_full (in /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0.1203.0)
     by 0x4EFE673: gst_parse_launchv_full (in /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0.1203.0)

https://bugzilla.gnome.org/show_bug.cgi?id=787683
This commit is contained in:
Antonio Ospite 2017-10-04 19:41:58 +02:00 committed by Nicolas Dufresne
parent f671026f11
commit 3c5aa0a786

View file

@ -517,6 +517,7 @@ gst_alsa_midi_src_stop (GstBaseSrc * basesrc)
alsamidisrc = GST_ALSA_MIDI_SRC (basesrc);
g_free (alsamidisrc->ports);
g_free (alsamidisrc->pfds);
g_free (alsamidisrc->buffer);
snd_midi_event_free (alsamidisrc->parser);