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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-03-27 14:46:37 +0300 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-03-27 14:46:37 +0300 |
| commit | e6830a86c260d73c6f370aa7ed17ee6c71e5ee05 (patch) | |
| tree | c2c7d472184da1549852b86eef551609cddcbcbf /drivers/ide/ide-dma.c | |
| parent | b109f526cabcd098131e770fd6232282bce147b4 (diff) | |
| download | linux-e6830a86c260d73c6f370aa7ed17ee6c71e5ee05.tar.xz | |
ide: call ide_build_sglist() prior to ->dma_setup (v2)
* Re-map sg table if needed in ide_build_sglist().
* Move ide_build_sglist() call from ->dma_setup to its users.
* Un-export ide_build_sglist().
v2:
* Build fix for CONFIG_BLK_DEV_IDEDMA=n (noticed by Randy Dunlap).
There should be no functional changes caused by this patch.
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-dma.c')
| -rw-r--r-- | drivers/ide/ide-dma.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index a878f4734f81..12c11b71402e 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -138,14 +138,15 @@ int ide_build_sglist(ide_drive_t *drive, struct request *rq) hwif->sg_dma_direction = DMA_TO_DEVICE; i = dma_map_sg(hwif->dev, sg, hwif->sg_nents, hwif->sg_dma_direction); - if (i) { + if (i == 0) + ide_map_sg(drive, rq); + else { hwif->orig_sg_nents = hwif->sg_nents; hwif->sg_nents = i; } return i; } -EXPORT_SYMBOL_GPL(ide_build_sglist); /** * ide_destroy_dmatable - clean up DMA mapping |