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ide: IDE_HFLAG_SERIALIZE_DMA bugfix 

Patch re-ordering could be harmful:

commit 1fd1890594
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>
hifive-unleashed-5.1
Bartlomiej Zolnierkiewicz 2008-05-04 17:03:41 +02:00
parent afa26be86b
commit 1024c5f4be
1 changed files with 6 additions and 6 deletions
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12
drivers/ide/ide-probe.c
View File

@ -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;