[MPlayer-dev-eng] [PATCH] segfault at v4l2 uninit

[Aurelien Jacobs]

Hi,

I've just found a bug in the v4l2 code.
When watching tv and then switching to a new stream
(with the loadfile slave command for example), v4l2
segfault at uninit. This is due to the tv_param_noaudio
var being reseted by m_config_pop before the v4l2 uninit.
This cause uninit to try to pthread_join when no thread
were created.

The patch fix the issue in a very simple way (making sure
the thread was really created before trying to join).
It may be better to uninit before the m_config_pop but
this would involves more important changes, so I think
this trivial fix is a better solution in the meantime.
I think it should be applied before pre6 release, so if
noboby is against it, I will apply quickly.

Aurel
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