[alsa-devel] alsa-lib TLVs and valgrind

[Sebastian H.]

Am 02.02.2011 14:12, schrieb Clemens Ladisch:
> Sebastian H. wrote:
>> I'm about to release a new version of alsamixer-qt4
>> (now named qasmixer) and ran the program through valgrind.
>>
>> valgrind --track-origins=yes src/qasmixer &> valgrind.log
>>
>> The log file contains tons of warnings like this
>>
>> ==3432== Conditional jump or move depends on uninitialised value(s)
>> ...
>> ... (qasmixer function calls)
>> ...
>> ==3432==  Uninitialised value was created by a heap allocation
>> ... malloc (vg_replace_malloc.c:236)
>> ... init_db_range (simple_none.c:1111)
>> ... get_dB_range (simple_none.c:1156)
>> ... get_dB_range_ops (simple_none.c:1173)
>> ... snd_mixer_selem_get_playback_dB_range (simple.c:298)
> 
> Valgrind doesn't know about some of the ALSA ioctls.
> Somebody would have to add them to valgrind.

That seems to require quite some effort - also to maintain.
Couldn't just the dB min/max values be initialized with 0 or sth.?

Sebastian