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icside: icside_dma_setup() fixes

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Check for ide_build_sglist() return value and re-map sg table if necessary.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2009-03-27 12:46:32 +01:00
parent 39375853d7
commit f7ef12482b
1 changed files with 4 additions and 0 deletions
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4
drivers/ide/icside.c
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@ -326,6 +326,10 @@ static int icside_dma_setup(ide_drive_t *drive)
BUG_ON(dma_channel_active(ec->dma));
hwif->sg_nents = ide_build_sglist(drive, rq);
if (hwif->sg_nents == 0) {
ide_map_sg(drive, rq);
return 1;
}
/*
* Ensure that we have the right interrupt routed.