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* jack: Fixing a small memory leak
@ 2015-08-10 14:58 Valentin Corfu
  2015-08-10 14:58 ` [PATCH] " Valentin Corfu
  2015-08-10 15:07 ` Takashi Iwai
  0 siblings, 2 replies; 7+ messages in thread
From: Valentin Corfu @ 2015-08-10 14:58 UTC (permalink / raw)
  To: alsa-devel


Hello Alsa developers,

I observed a small memory leak in alsa-plugins (jack):

...
==1034== 
==1034== 8 bytes in 1 blocks are definitely lost in loss record 7 of 108
==1034==    at 0x4027E5A: calloc (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==1034==    by 0x4035102: snd_pcm_jack_prepare (in /usr/lib/alsa-lib/libasound_module_pcm_jack.so)
==1034==    by 0x40D07AB: snd_pcm_ioplug_prepare (pcm_ioplug.c:145)
==1034==    by 0x4084961: snd_pcm_prepare (pcm.c:1052)
==1034==    by 0x409DDB4: snd_pcm_plugin_prepare (pcm_plugin.c:162)
==1034==    by 0x4084961: snd_pcm_prepare (pcm.c:1052)
==1034==    by 0x409DDB4: snd_pcm_plugin_prepare (pcm_plugin.c:162)
==1034==    by 0x4084961: snd_pcm_prepare (pcm.c:1052)
==1034==    by 0x4084A1D: snd_pcm_hw_params (pcm.c:838)
==1034==    by 0x4090013: snd_pcm_set_params (pcm.c:8053)
==1034==    by 0x80486EB: main (in /root/pcm_min_ok)
...
==1034== LEAK SUMMARY:
==1034==    definitely lost: 8 bytes in 1 blocks
==1034==    indirectly lost: 0 bytes in 0 blocks
==1034==      possibly lost: 31,311 bytes in 1,630 blocks
==1034==    still reachable: 5,619 bytes in 24 blocks
==1034==         suppressed: 0 bytes in 0 blocks
==1034== Reachable blocks (those to which a pointer was found) are not shown.
==1034== To see them, rerun with: --leak-check=full --show-leak-kinds=all
...


Best Regards,
Valentin Corfu

^ permalink raw reply	[flat|nested] 7+ messages in thread
* [PATCH] jack: Fixing a small memory leak
@ 2015-08-11  6:37 Valentin Corfu
  2015-08-11  7:39 ` Takashi Iwai
  0 siblings, 1 reply; 7+ messages in thread
From: Valentin Corfu @ 2015-08-11  6:37 UTC (permalink / raw)
  To: alsa-devel; +Cc: Valentin Corfu

A small memory leak can be observed when using alsa-plugins (jack).
Check the following valgrind log:
...
==1034== 8 bytes in 1 blocks are definitely lost in loss record 7 of 108
==1034==    at 0x4027E5A: calloc (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==1034==    by 0x4035102: snd_pcm_jack_prepare (in /usr/lib/alsa-lib/libasound_module_pcm_jack.so)
==1034==    by 0x40D07AB: snd_pcm_ioplug_prepare (pcm_ioplug.c:145)
==1034==    by 0x4084961: snd_pcm_prepare (pcm.c:1052)
==1034==    by 0x409DDB4: snd_pcm_plugin_prepare (pcm_plugin.c:162)
==1034==    by 0x4084961: snd_pcm_prepare (pcm.c:1052)
==1034==    by 0x409DDB4: snd_pcm_plugin_prepare (pcm_plugin.c:162)
==1034==    by 0x4084961: snd_pcm_prepare (pcm.c:1052)
==1034==    by 0x4084A1D: snd_pcm_hw_params (pcm.c:838)
==1034==    by 0x4090013: snd_pcm_set_params (pcm.c:8053)
==1034==    by 0x80486EB: main (in /root/pcm_min_ok)
...
==1034== LEAK SUMMARY:
==1034==    definitely lost: 8 bytes in 1 blocks
==1034==    indirectly lost: 0 bytes in 0 blocks
==1034==      possibly lost: 31,311 bytes in 1,630 blocks
==1034==    still reachable: 5,619 bytes in 24 blocks
==1034==         suppressed: 0 bytes in 0 blocks
...

Signed-off-by: Valentin Corfu <corfuvalentin@gmail.com>
---
 jack/pcm_jack.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/jack/pcm_jack.c b/jack/pcm_jack.c
index 568ec43..de9c46e 100644
--- a/jack/pcm_jack.c
+++ b/jack/pcm_jack.c
@@ -103,6 +103,7 @@ static void snd_pcm_jack_free(snd_pcm_jack_t *jack)
 		if (jack->io.poll_fd >= 0)
 			close(jack->io.poll_fd);
 		free(jack->areas);
+		free(jack->ports);
 		free(jack);
 	}
 }
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2015-08-11  7:45 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-08-10 14:58 jack: Fixing a small memory leak Valentin Corfu
2015-08-10 14:58 ` [PATCH] " Valentin Corfu
2015-08-10 15:09   ` Takashi Iwai
2015-08-10 15:07 ` Takashi Iwai
  -- strict thread matches above, loose matches on Subject: below --
2015-08-11  6:37 [PATCH] " Valentin Corfu
2015-08-11  7:39 ` Takashi Iwai
2015-08-11  7:43   ` Valentin Corfu

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