[alsa-devel] [PATCH 1/3] ASoC: compress: Only call free for components which have been opened

Vinod Koul vinod.koul at intel.com
Wed Apr 25 10:52:19 CEST 2018


On Tue, Apr 24, 2018 at 04:39:01PM +0100, Charles Keepax wrote:
> The core should only call free on a component if said component has
> already had open called on it. This is not presently the case and most
> compressed drivers in the kernel assume it will be. This causes null
> pointer dereferences in the drivers as they attempt clean up for stuff
> that was never put in place.
> 
> This is fixed by aborting calling open callbacks once a failure is
> encountered and then during clean up only iterating through the
> component list to that point.

Acked-by: Vinod Koul <vkoul at kernel.org>

-- 
~Vinod


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