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Commit 9b941c66 authored by Zhang Wei's avatar Zhang Wei Committed by Dan Williams
Browse files

dmaengine: Fix a bug about BUG_ON() on DMA engine capability DMA_INTERRUPT. 



The device->device_prep_dma_interrupt function is used by
DMA_INTERRUPT capability, not DMA_ZERO_SUM.

Signed-off-by: default avatarZhang Wei <wei.zhang@freescale.com>
Acked-by: default avatarMaciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 56822843

drivers/dma/dmaengine.c

+1 −1
Original line number Diff line number Diff line
@@ -357,7 +357,7 @@ int dma_async_device_register(struct dma_device *device) 
		!device->device_prep_dma_zero_sum);

	BUG_ON(dma_has_cap(DMA_MEMSET, device->cap_mask) &&

		!device->device_prep_dma_memset);

	BUG_ON(dma_has_cap(DMA_ZERO_SUM, device->cap_mask) &&

	BUG_ON(dma_has_cap(DMA_INTERRUPT, device->cap_mask) &&

		!device->device_prep_dma_interrupt);



	BUG_ON(!device->device_alloc_chan_resources);