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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-27 12:46:37 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-27 12:46:37 +0100
commite6830a86c260d73c6f370aa7ed17ee6c71e5ee05 (patch)
treec2c7d472184da1549852b86eef551609cddcbcbf /drivers/ide/ide-dma.c
parentb109f526cabcd098131e770fd6232282bce147b4 (diff)
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.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index a878f4734f8..12c11b71402 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