diff options
author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-24 13:38:30 +1100 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-24 13:38:30 +1100 |
commit | 9e41d9597e7825ec20d690013d32bcec5f3fe16a (patch) | |
tree | ac6fea59e9a4a1c2183d6bbd6ffa760680673afb /drivers/ide/ide-dma.c | |
parent | 77ecfe8d427f554fabbf258e9d789f1d4c3afd63 (diff) | |
parent | 8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff) |
Merge commit 'origin/master' into next
Diffstat (limited to 'drivers/ide/ide-dma.c')
-rw-r--r-- | drivers/ide/ide-dma.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index 72ebab0bc755..059c90bb5ad2 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -128,6 +128,7 @@ int ide_build_sglist(ide_drive_t *drive, struct request *rq) { ide_hwif_t *hwif = drive->hwif; struct scatterlist *sg = hwif->sg_table; + int i; ide_map_sg(drive, rq); @@ -136,8 +137,13 @@ int ide_build_sglist(ide_drive_t *drive, struct request *rq) else hwif->sg_dma_direction = DMA_TO_DEVICE; - return dma_map_sg(hwif->dev, sg, hwif->sg_nents, - hwif->sg_dma_direction); + i = dma_map_sg(hwif->dev, sg, hwif->sg_nents, hwif->sg_dma_direction); + if (i) { + hwif->orig_sg_nents = hwif->sg_nents; + hwif->sg_nents = i; + } + + return i; } EXPORT_SYMBOL_GPL(ide_build_sglist); @@ -156,7 +162,7 @@ void ide_destroy_dmatable(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; - dma_unmap_sg(hwif->dev, hwif->sg_table, hwif->sg_nents, + dma_unmap_sg(hwif->dev, hwif->sg_table, hwif->orig_sg_nents, hwif->sg_dma_direction); } EXPORT_SYMBOL_GPL(ide_destroy_dmatable); |