[alsa-devel] [PATCH 6/6] pcm:plug: save converter config

From: Andreas Pape apape@de.adit-jv.com
Passed config is freed after call to open, thus it is invalid when trying to extract the converter name. So config entry is saved for later usage.
Signed-off-by: Andreas Pape apape@de.adit-jv.com Signed-off-by: Mounesh Sutar sutar.mounesh@gmail.com
diff --git a/src/pcm/pcm_plug.c b/src/pcm/pcm_plug.c index 266707b..6d0c03d 100644 --- a/src/pcm/pcm_plug.c +++ b/src/pcm/pcm_plug.c @@ -64,6 +64,8 @@ static int snd_pcm_plug_close(snd_pcm_t *pcm) snd_pcm_plug_t *plug = pcm->private_data; int err, result = 0; free(plug->ttable); + if (plug->rate_converter) + snd_config_delete((snd_config_t*)plug->rate_converter); assert(plug->gen.slave == plug->req_slave); if (plug->gen.close_slave) { snd_pcm_unlink_hw_ptr(pcm, plug->req_slave); @@ -1108,7 +1110,15 @@ int snd_pcm_plug_open(snd_pcm_t **pcmp, plug->sformat = sformat; plug->schannels = schannels; plug->srate = srate; - plug->rate_converter = rate_converter; + if (rate_converter) { + if ((err = snd_config_copy((snd_config_t**)&plug->rate_converter, + (snd_config_t *)rate_converter)) < 0) + free(plug); + return err; + } + else + snd_config_delete((snd_config_t*)plug->rate_converter); + plug->gen.slave = plug->req_slave = slave; plug->gen.close_slave = close_slave; plug->route_policy = route_policy; @@ -1119,6 +1129,8 @@ int snd_pcm_plug_open(snd_pcm_t **pcmp, err = snd_pcm_new(&pcm, SND_PCM_TYPE_PLUG, name, slave->stream, slave->mode); if (err < 0) { + if (plug->rate_converter) + snd_config_delete((snd_config_t*)plug->rate_converter); free(plug); return err; }

On Fri, 17 Feb 2017 08:18:02 +0100, sutar.mounesh@gmail.com wrote:
From: Andreas Pape apape@de.adit-jv.com
Passed config is freed after call to open, thus it is invalid when trying to extract the converter name. So config entry is saved for later usage.
Signed-off-by: Andreas Pape apape@de.adit-jv.com Signed-off-by: Mounesh Sutar sutar.mounesh@gmail.com
diff --git a/src/pcm/pcm_plug.c b/src/pcm/pcm_plug.c index 266707b..6d0c03d 100644 --- a/src/pcm/pcm_plug.c +++ b/src/pcm/pcm_plug.c @@ -64,6 +64,8 @@ static int snd_pcm_plug_close(snd_pcm_t *pcm) snd_pcm_plug_t *plug = pcm->private_data; int err, result = 0; free(plug->ttable);
- if (plug->rate_converter)
assert(plug->gen.slave == plug->req_slave); if (plug->gen.close_slave) { snd_pcm_unlink_hw_ptr(pcm, plug->req_slave);snd_config_delete((snd_config_t*)plug->rate_converter);
@@ -1108,7 +1110,15 @@ int snd_pcm_plug_open(snd_pcm_t **pcmp, plug->sformat = sformat; plug->schannels = schannels; plug->srate = srate;
- plug->rate_converter = rate_converter;
- if (rate_converter) {
if ((err = snd_config_copy((snd_config_t**)&plug->rate_converter,
(snd_config_t *)rate_converter)) < 0)
free(plug);
return err;
- }
- else
snd_config_delete((snd_config_t*)plug->rate_converter);
Why do we need to delete plug->rate_converter here...? It's nowhere assigned after the patch?
thanks,
Takashi

Hi Takashi,
Yes, it is redundant to delete plug->rate_converter. The patch has been fixed and submitted.
Regards, Mounesh
-----Original Message----- From: Takashi Iwai [mailto:tiwai@suse.de] Sent: 17 February 2017 23:15 To: sutar.mounesh@gmail.com Cc: alsa-devel@alsa-project.org; Sutar, Mounesh Mounesh_Sutar@mentor.com; Andreas Pape apape@de.adit-jv.com Subject: Re: [PATCH 6/6] pcm:plug: save converter config
On Fri, 17 Feb 2017 08:18:02 +0100, sutar.mounesh@gmail.com wrote:
From: Andreas Pape apape@de.adit-jv.com
Passed config is freed after call to open, thus it is invalid when trying to extract the converter name. So config entry is saved for later usage.
Signed-off-by: Andreas Pape apape@de.adit-jv.com Signed-off-by: Mounesh Sutar sutar.mounesh@gmail.com
diff --git a/src/pcm/pcm_plug.c b/src/pcm/pcm_plug.c index 266707b..6d0c03d 100644 --- a/src/pcm/pcm_plug.c +++ b/src/pcm/pcm_plug.c @@ -64,6 +64,8 @@ static int snd_pcm_plug_close(snd_pcm_t *pcm) snd_pcm_plug_t *plug = pcm->private_data; int err, result = 0; free(plug->ttable);
- if (plug->rate_converter)
assert(plug->gen.slave == plug->req_slave); if (plug->gen.close_slave) { snd_pcm_unlink_hw_ptr(pcm, plug->req_slave); @@ -1108,7 +1110,15 @@snd_config_delete((snd_config_t*)plug->rate_converter);
int snd_pcm_plug_open(snd_pcm_t **pcmp, plug->sformat = sformat; plug->schannels = schannels; plug->srate = srate;
- plug->rate_converter = rate_converter;
- if (rate_converter) {
if ((err = snd_config_copy((snd_config_t**)&plug->rate_converter,
(snd_config_t *)rate_converter)) < 0)
free(plug);
return err;
- }
- else
snd_config_delete((snd_config_t*)plug->rate_converter);
Why do we need to delete plug->rate_converter here...? It's nowhere assigned after the patch?
thanks,
Takashi
participants (3)
-
Sutar, Mounesh
-
sutar.mounesh@gmail.com
-
Takashi Iwai