From f7ef12482b17a015906cf74afe655e691b5fa2cb Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 27 Mar 2009 12:46:32 +0100 Subject: [PATCH] icside: icside_dma_setup() fixes Check for ide_build_sglist() return value and re-map sg table if necessary. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/icside.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/ide/icside.c b/drivers/ide/icside.c index 0cf47e6e9793..cf0522f937c1 100644 --- a/drivers/ide/icside.c +++ b/drivers/ide/icside.c @@ -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. -- 2.20.1