Commit 3649c06e authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
Browse files

ide: add missing validity checks for identify words 62 and 63



Check validity of identify words 62 and 63 before using them in
ide_get_mode_mask().
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 4728d546
......@@ -731,10 +731,12 @@ static unsigned int ide_get_mode_mask(ide_drive_t *drive, u8 base)
mask &= 0x07;
break;
case XFER_MW_DMA_0:
mask = id->dma_mword & hwif->mwdma_mask;
if (id->field_valid & 2)
mask = id->dma_mword & hwif->mwdma_mask;
break;
case XFER_SW_DMA_0:
mask = id->dma_1word & hwif->swdma_mask;
if (id->field_valid & 2)
mask = id->dma_1word & hwif->swdma_mask;
break;
default:
BUG();
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment