projects
/
kernel
/
kernel-generic.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(parent:
4728d54
)
ide: add missing validity checks for identify words 62 and 63
author
Bartlomiej Zolnierkiewicz
<bzolnier@gmail.com>
Tue, 15 May 2007 22:51:46 +0000
(
00:51
+0200)
committer
Bartlomiej Zolnierkiewicz
<bzolnier@gmail.com>
Tue, 15 May 2007 22:51:46 +0000
(
00:51
+0200)
Check validity of identify words 62 and 63 before using them in
ide_get_mode_mask().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
drivers/ide/ide-dma.c
patch
|
blob
|
history
diff --git
a/drivers/ide/ide-dma.c
b/drivers/ide/ide-dma.c
index
de33e6f
..
ada2a3e
100644
(file)
--- a/
drivers/ide/ide-dma.c
+++ b/
drivers/ide/ide-dma.c
@@
-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();