Em 24-09-2011 17:54, Chris Rankin escreveu:
> This fixes the deadlock that occurs with either multiple PCTV 290e adapters
> or when a single PCTV 290e adapter is replugged.
>
> For DVB devices, the device lock must now *not* be held when adding/removing
> either a device or an extension to the respective lists. (Because
> em28xx_init_dvb() will want to take the lock instead).
>
> Conversely, for Audio-Only devices, the device lock *must* be held when
> adding/removing either a device or an extension to the respective lists.
>
> Signed-off-by: Chris Rankin <[email protected]>
Ok, I've applied it, but it doesn't sound a good idea to me to do:
+ mutex_unlock(&dev->lock);
em28xx_init_extension(dev);
+ mutex_lock(&dev->lock);
I'll later test it with some hardware and see how well this behaves
in practice.
Thanks,
Mauro
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