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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-04-26 17:36:43 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-04-26 17:36:43 +0200 |
| commit | 784506cbddd17bcd5929f827df39b0c7014e3f1e (patch) | |
| tree | 1daf7f9d1f8dafe309742c6d136c90923fa2f720 /drivers/ide/ide-lib.c | |
| parent | sis5513: fail early for unsupported chipsets (diff) | |
| download | linux-784506cbddd17bcd5929f827df39b0c7014e3f1e.tar.xz linux-784506cbddd17bcd5929f827df39b0c7014e3f1e.zip | |
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-lib.c')
| -rw-r--r-- | drivers/ide/ide-lib.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c index fa4c194b5ede..c859de77aa8f 100644 --- a/drivers/ide/ide-lib.c +++ b/drivers/ide/ide-lib.c @@ -290,7 +290,8 @@ void ide_set_pio(ide_drive_t *drive, u8 req_pio) ide_hwif_t *hwif = drive->hwif; u8 host_pio, pio; - if (hwif->set_pio_mode == NULL) + if (hwif->set_pio_mode == NULL || + (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)) return; BUG_ON(hwif->pio_mask == 0x00); @@ -343,6 +344,9 @@ int ide_set_pio_mode(ide_drive_t *drive, const u8 mode) { ide_hwif_t *hwif = drive->hwif; + if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE) + return 0; + if (hwif->set_pio_mode == NULL) return -1; @@ -370,6 +374,9 @@ int ide_set_dma_mode(ide_drive_t *drive, const u8 mode) { ide_hwif_t *hwif = drive->hwif; + if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE) + return 0; + if (hwif->set_dma_mode == NULL) return -1; @@ -400,7 +407,8 @@ int ide_set_xfer_rate(ide_drive_t *drive, u8 rate) { ide_hwif_t *hwif = drive->hwif; - if (hwif->set_dma_mode == NULL) + if (hwif->set_dma_mode == NULL || + (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)) return -1; rate = ide_rate_filter(drive, rate); |