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libata-sff: Don't call bmdma_stop on non DMA capable controllers

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Fixes bogus accesses to ports 0-15 with a non DMA capable controller.
This I think should go in for 2.6.20

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Alan
2007-01-25 15:09:05 +00:00
committed by Jeff Garzik
parent b2a8bbe67d
commit 61dd08c6c8
1 changed files with 2 additions and 1 deletions
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drivers/ata/libata-sff.c
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@@ -827,7 +827,8 @@ void ata_bmdma_error_handler(struct ata_port *ap)
*/ */
void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc) void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc)
{ {
ata_bmdma_stop(qc); if (qc->ap->ioaddr.bmdma_addr)
ata_bmdma_stop(qc);
} }
#ifdef CONFIG_PCI #ifdef CONFIG_PCI