Messages in this thread | | | Date | Thu, 10 Dec 2015 09:45:44 +0530 | From | Vinod Koul <> | Subject | Re: [PATCH v2] dmaengine: stm32-dma: Fix unchecked deference of chan->desc |
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On Mon, Dec 07, 2015 at 12:00:28PM +0100, M'boumba Cedric Madianga wrote: > 'commit d8b468394fb7 ("dmaengine: Add STM32 DMA driver")' leads to the > following Smatch complaint: > > drivers/dma/stm32-dma.c:562 stm32_dma_issue_pending() > error: we previously assumed 'chan->desc' could be null (see line 560) > > So, this patch fixes the unchecked dereference of chan->desc by returning > operation not permitted error when stm32_dma_start_transfer() does not > succeed to allocate a virtual channel descriptor.
Applied, thanks
-- ~Vinod
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