From c1f43dd9c20d85e66c4d77e284f64ac114abe3f8 Mon Sep 17 00:00:00 2001 From: Xuelin Shi Date: Wed, 21 May 2014 14:02:37 -0700 Subject: dmaengine: fix dmaengine_unmap failure The count which is used to get_unmap_data maybe not the same as the count computed in dmaengine_unmap which causes to free data in a wrong pool. This patch fixes this issue by keeping the map count with unmap_data structure and use this count to get the pool. Cc: Signed-off-by: Xuelin Shi Signed-off-by: Dan Williams --- include/linux/dmaengine.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 8300fb87b84a..72cb0ddb9678 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -429,6 +429,7 @@ typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param); typedef void (*dma_async_tx_callback)(void *dma_async_param); struct dmaengine_unmap_data { + u8 map_cnt; u8 to_cnt; u8 from_cnt; u8 bidi_cnt; -- cgit v1.2.3-59-g8ed1b