[alsa-devel] Small memory leak in snd_pcm_ladspa_init()

John Lindgren john.lindgren at tds.net
Wed Jul 21 17:48:37 CEST 2010


Hello,

Valgrind shows up a small memory leak in libasound when using a LADSPA
plugin.  Sorry, I don't have a patch this time.

==30783== 16 bytes in 2 blocks are definitely lost in loss record 1,976 of 6,954
==30783==    at 0x4C2380C: calloc (vg_replace_malloc.c:467)
==30783==    by 0x1B06BEFD: snd_pcm_ladspa_init (pcm_ladspa.c:744)
==30783==    by 0x1B04B325: snd_pcm_plugin_prepare (pcm_plugin.c:167)
==30783==    by 0x1B04B2EE: snd_pcm_plugin_prepare (pcm_plugin.c:158)

==30783== 16 bytes in 2 blocks are definitely lost in loss record 1,977 of 6,954
==30783==    at 0x4C2380C: calloc (vg_replace_malloc.c:467)
==30783==    by 0x1B06BF25: snd_pcm_ladspa_init (pcm_ladspa.c:746)
==30783==    by 0x1B04B325: snd_pcm_plugin_prepare (pcm_plugin.c:167)
==30783==    by 0x1B04B2EE: snd_pcm_plugin_prepare (pcm_plugin.c:158)

...

==30783== 16 bytes in 2 blocks are definitely lost in loss record 1,980 of 6,954
==30783==    at 0x4C2380C: calloc (vg_replace_malloc.c:467)
==30783==    by 0x1B06BEFD: snd_pcm_ladspa_init (pcm_ladspa.c:744)
==30783==    by 0x1B04B325: snd_pcm_plugin_prepare (pcm_plugin.c:167)
==30783==    by 0x1B04B2EE: snd_pcm_plugin_prepare (pcm_plugin.c:158)
==30783==    by 0x1B03B2DC: snd_pcm_recover (pcm.c:7246)

==30783== 16 bytes in 2 blocks are definitely lost in loss record 1,981 of 6,954
==30783==    at 0x4C2380C: calloc (vg_replace_malloc.c:467)
==30783==    by 0x1B06BF25: snd_pcm_ladspa_init (pcm_ladspa.c:746)
==30783==    by 0x1B04B325: snd_pcm_plugin_prepare (pcm_plugin.c:167)
==30783==    by 0x1B04B2EE: snd_pcm_plugin_prepare (pcm_plugin.c:158)
==30783==    by 0x1B03B2DC: snd_pcm_recover (pcm.c:7246)

... and so on.

-- John


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