Re: [PATCH 3/7] ark3116: (3rd try) Replace cmget
From: Oliver Neukum
Date: Sun Oct 25 2009 - 15:50:36 EST
Am Sonntag, 25. Oktober 2009 18:51:00 schrieb bart.hartgers@xxxxxxxxx:
> + /* read modem status */
> + unsigned status = atomic_read(&priv->msr);
> + /* modem control is output */
> + unsigned ctrl = atomic_read(&priv->mcr);
What is the sense of having two atomic variables?
You can get races where one is changed but the other is not.
Regards
Oliver
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