[alsa-devel] [PATCH 01/11] dma: imx-sdma: make channel0 operations atomic

[Richard Zhao]

On Fri, Apr 27, 2012 at 02:10:10PM +0100, Russell King - ARM Linux wrote:
> On Fri, Apr 27, 2012 at 06:31:13PM +0530, Laxman Dewangan wrote:
> > On Friday 27 April 2012 05:03 PM, Russell King - ARM Linux wrote:
> >> On Fri, Apr 27, 2012 at 07:26:56PM +0800, Richard Zhao wrote:
> >>> Sure, I mean, can you doc in include/linux/dmaengine.h that
> >>> dmaengine_prep_xxx may sleep?
> >> Incorrect.  They may _not_ sleep.
Vinod, do you agree? Any way, better doc it.

Thanks
Richard
> >
> > But I have seen that we are using the kzalloc in the dmaengine_prep_xxx  
> > and kzalloc is sleeping call.
> 
> Not with GFP_ATOMIC it isn't.
>