diff options
author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-18 13:16:30 +1100 |
---|---|---|
committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-18 13:16:30 +1100 |
commit | c71327ad9f925a4ddbf24db80ce66165104c4ed0 (patch) | |
tree | a1560ddfb827d580843d2a32ba19fb0fc85490d8 /drivers/ide/ide-dma.c | |
parent | f507cd22035fdadd5dbb476dd05e9e7ee21c3b84 (diff) | |
parent | a4bd6a93c3f14691c8a29e53eb04dc734b27f0db (diff) |
Merge commit 'gcl/merge' into merge
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 72ebab0bc75..059c90bb5ad 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); |