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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-05-04 17:03:41 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-05-04 17:03:41 +0200 |
| commit | 1024c5f4be4fc5b00337464fb8a442bebf15df68 (patch) | |
| tree | 2304eeb193c66540ce1f6c767cae97d40d1cd7d6 /drivers/ide | |
| parent | afa26be86b65a7183ceac29bdf1f51d6fc6932f0 (diff) | |
| download | lwn-1024c5f4be4fc5b00337464fb8a442bebf15df68.tar.gz lwn-1024c5f4be4fc5b00337464fb8a442bebf15df68.zip | |
ide: IDE_HFLAG_SERIALIZE_DMA bugfix
Patch re-ordering could be harmful:
commit 1fd1890594bd355a4217f5658a34763e77decee3
Author: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Sat Apr 26 22:25:24 2008 +0200
ide: add IDE_HFLAG_SERIALIZE_DMA host flag
...
is buggy because ->init_dma method / ide_hwif_setup_dma() is called
before IDE_HFLAG_SERIALIZE_DMA host flag is checked.
Fix it by checking IDE_HFLAG_SERIALIZE[_DMA] after DMA initialization.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide')
| -rw-r--r-- | drivers/ide/ide-probe.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 591deda3f86a..34b0d4f26b58 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -1355,12 +1355,6 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port, if (hwif->chipset != ide_dtc2278 || hwif->channel == 0) hwif->port_ops = d->port_ops; - if ((d->host_flags & IDE_HFLAG_SERIALIZE) || - ((d->host_flags & IDE_HFLAG_SERIALIZE_DMA) && hwif->dma_base)) { - if (hwif->mate) - hwif->mate->serialized = hwif->serialized = 1; - } - hwif->swdma_mask = d->swdma_mask; hwif->mwdma_mask = d->mwdma_mask; hwif->ultra_mask = d->udma_mask; @@ -1382,6 +1376,12 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port, hwif->dma_ops = d->dma_ops; } + if ((d->host_flags & IDE_HFLAG_SERIALIZE) || + ((d->host_flags & IDE_HFLAG_SERIALIZE_DMA) && hwif->dma_base)) { + if (hwif->mate) + hwif->mate->serialized = hwif->serialized = 1; + } + if (d->host_flags & IDE_HFLAG_RQSIZE_256) hwif->rqsize = 256; |