icside: icside_dma_setup() fixes



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

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

parent 39375853

drivers/ide/icside.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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.