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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-26 19:36:43 +0400
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-26 19:36:43 +0400
commit784506cbddd17bcd5929f827df39b0c7014e3f1e (patch)
tree1daf7f9d1f8dafe309742c6d136c90923fa2f720 /drivers/ide/ide.c
parent4764b68405ac918e9ac9939b1a2d1469102e5af7 (diff)
downloadlinux-784506cbddd17bcd5929f827df39b0c7014e3f1e.tar.xz
ide: sanitize handling of IDE_HFLAG_NO_SET_MODE host flag
* Check for IDE_HFLAG_NO_SET_MODE host flag in ide_set_pio(), ide_set_[pio,dma]_mode(), ide_set_xfer_rate() and set_pio_mode(). * Remove no longer needed IDE_HFLAG_NO_SET_MODE host flag checking from ide_tune_dma(). * Remove superfluous ->set_pio_mode checking from do_special(). This is a part of preparations for adding 'struct ide_port_ops'. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide.c')
-rw-r--r--drivers/ide/ide.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index f04b53cb023f..d868ca44d033 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -584,11 +584,13 @@ out:
int set_pio_mode(ide_drive_t *drive, int arg)
{
struct request rq;
+ ide_hwif_t *hwif = drive->hwif;
if (arg < 0 || arg > 255)
return -EINVAL;
- if (drive->hwif->set_pio_mode == NULL)
+ if (hwif->set_pio_mode == NULL ||
+ (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
return -ENOSYS;
if (drive->special.b.set_tune)