Re: [PATCH V3 2/4] AC97 driver for mpc5200

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, May 25, 2009 at 6:26 AM, Mark Brown
<broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>> +             spin_lock(&psc_dma->lock);
>> +             out_be32(&psc_dma->psc_regs->ac97_slots, psc_dma->slots);
>> +             spin_unlock(&psc_dma->lock);
>> +             break;
>
> This locking looks wrong - I'd expect it to also cover the modification
> of psc_dma->slots?  Otherwise it's hard to see what it buys you.

Grant, why are you spin locking around register access?


-- 
Jon Smirl
jonsmirl@xxxxxxxxx
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel


[Index of Archives]     [ALSA User]     [Linux Audio Users]     [Kernel Archive]     [Asterisk PBX]     [Photo Sharing]     [Linux Sound]     [Video 4 Linux]     [Gimp]     [Yosemite News]

  Powered by Linux