PERFORCE change 113164 for review
Attilio Rao
attilio at freebsd.org
Fri Jan 19 16:58:16 UTC 2007
2007/1/19, Hans Petter Selasky <hselasky at freebsd.org>:
> http://perforce.freebsd.org/chv.cgi?CH=113164
>
> Change 113164 by hselasky at hselasky_mini_itx on 2007/01/19 16:56:15
>
> The sound mutex needs to allow recursion, else the
> new "uaudio" will not work.
>
> Affected files ...
>
> .. //depot/projects/usb/src/sys/dev/sound/pcm/sound.c#3 edit
>
> Differences ...
>
> ==== //depot/projects/usb/src/sys/dev/sound/pcm/sound.c#3 (text+ko) ====
>
> @@ -78,7 +78,7 @@
> m = malloc(sizeof(*m), M_DEVBUF, M_WAITOK | M_ZERO);
> if (m == NULL)
> return NULL;
> - mtx_init(m, desc, type, MTX_DEF);
> + mtx_init(m, desc, type, MTX_DEF|MTX_RECURSE);
> return m;
> #else
> return (void *)0xcafebabe;
>
Recursed mutexes very often are symptomatic of some some bug...
it is the case? why the mutex is recursed?
Attilio
--
Peace can only be achieved by understanding - A. Einstein
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