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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-03-27 12:46:32 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-03-27 12:46:32 +0100 |
| commit | f7ef12482b17a015906cf74afe655e691b5fa2cb (patch) | |
| tree | 9a10f00f8bca32d1c7300fca2ee3642d2a85251b /drivers/ide/icside.c | |
| parent | 39375853d77bea48b7b334daa3698277af8d33f4 (diff) | |
| download | linux-f7ef12482b17a015906cf74afe655e691b5fa2cb.tar.gz linux-f7ef12482b17a015906cf74afe655e691b5fa2cb.tar.bz2 linux-f7ef12482b17a015906cf74afe655e691b5fa2cb.zip | |
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>
Diffstat (limited to 'drivers/ide/icside.c')
| -rw-r--r-- | drivers/ide/icside.c | 4 |
1 files changed, 4 insertions, 0 deletions
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. |