[alsa-devel] [PATCH 01/11] dma: imx-sdma: make channel0 operations atomic
Russell King - ARM Linux
linux at arm.linux.org.uk
Fri Apr 27 15:10:10 CEST 2012
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.
> 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.
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