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| author | Mika Westerberg <ext-mika.1.westerberg@nokia.com> | 2010-03-24 12:10:48 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-05-10 14:17:05 +0100 |
| commit | 4a70b7d3953c279738a094d2e5ffe7c66b15a5d0 (patch) | |
| tree | d791145ce49044b85b0e782f22b8046b8ba76422 /drivers/mtd/onenand | |
| parent | ac39ee304ac33f15107e42adb5ee5b0d0ce2dc4a (diff) | |
| download | kernel_samsung_tuna-4a70b7d3953c279738a094d2e5ffe7c66b15a5d0.zip kernel_samsung_tuna-4a70b7d3953c279738a094d2e5ffe7c66b15a5d0.tar.gz kernel_samsung_tuna-4a70b7d3953c279738a094d2e5ffe7c66b15a5d0.tar.bz2 | |
mtd: OneNAND: OMAP2/3: unmap correct DMA buffer
Functions omap2_onenand_write_bufferram() and omap3_onenand_write_bufferram()
map the write buffer and store the returned handle in variable dma_src. However,
when DMA unmap is done, variable dma_dst is used instead of the correct dma_src.
This patch fixes them to use the correct DMA buffer.
Signed-off-by: Mika Westerberg <ext-mika.1.westerberg@nokia.com>
Tested-by: Arnaud Ebalard <arno@natisbad.org>
Acked-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/onenand')
| -rw-r--r-- | drivers/mtd/onenand/omap2.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index dfbab6c..f52934c 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"); @@ -520,7 +520,7 @@ static int omap2_onenand_write_bufferram(struct mtd_info *mtd, int area, dma_src = dma_map_single(&c->pdev->dev, (void *) buffer, 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); @@ -538,7 +538,7 @@ static int omap2_onenand_write_bufferram(struct mtd_info *mtd, int area, omap_start_dma(c->dma_channel); wait_for_completion(&c->dma_done); - dma_unmap_single(&c->pdev->dev, dma_dst, count, DMA_TO_DEVICE); + dma_unmap_single(&c->pdev->dev, dma_src, count, DMA_TO_DEVICE); return 0; } |