icside: icside_dma_setup() fixes

Check for ide_build_sglist() return value and re-map sg table if necessary.
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 39375853
......@@ -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.
......
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