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SubjectRe: [PATCH] dmaengine: avoid map_cnt overflow with CONFIG_DMA_ENGINE_RAID
On Mon, Jan 08, 2018 at 10:50:50AM -0500, Zi Yan wrote:
> From: Zi Yan <>
> When CONFIG_DMA_ENGINE_RAID is enabled, unmap pool size can reach to
> 256. But in struct dmaengine_unmap_data, map_cnt is only u8, wrapping
> to 0, if the unmap pool is maximally used. This triggers BUG() when
> struct dmaengine_unmap_data is freed. Use u16 to fix the problem.

Applied, thanks


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