[PATCH] mtd: OneNAND: OMAP3: unmap correct DMA buffer
Mika Westerberg
ext-mika.1.westerberg at nokia.com
Tue Mar 23 09:33:44 EDT 2010
Function omap3_onenand_write_bufferram() maps the write buffer and stores the
returned handle in dma_src. However, when it does the DMA unmap, it uses wrong
DMA handle (dma_dst).
This patch fixes it to use the correct DMA handle.
Signed-off-by: Mika Westerberg <ext-mika.1.westerberg at nokia.com>
---
drivers/mtd/onenand/omap2.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 75f38b9..2d81a3a 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -402,7 +402,7 @@ static int omap3_onenand_write_bufferram(struct mtd_info *mtd, int area,
dma_src = dma_map_single(&c->pdev->dev, buf, count, DMA_TO_DEVICE);
dma_dst = c->phys_base + bram_offset;
- if (dma_mapping_error(&c->pdev->dev, dma_dst)) {
+ if (dma_mapping_error(&c->pdev->dev, dma_src)) {
dev_err(&c->pdev->dev,
"Couldn't DMA map a %d byte buffer\n",
count);
@@ -425,7 +425,7 @@ static int omap3_onenand_write_bufferram(struct mtd_info *mtd, int area,
if (*done)
break;
- dma_unmap_single(&c->pdev->dev, dma_dst, count, DMA_TO_DEVICE);
+ dma_unmap_single(&c->pdev->dev, dma_src, count, DMA_TO_DEVICE);
if (!*done) {
dev_err(&c->pdev->dev, "timeout waiting for DMA\n");
--
1.5.6.5
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