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libata-sff: Don't call bmdma_stop on non DMA capable controllers
author
Alan
<alan@lxorguk.ukuu.org.uk>
Thu, 25 Jan 2007 15:09:05 +0000
(15:09 +0000)
committer
Jeff Garzik
<jeff@garzik.org>
Thu, 25 Jan 2007 23:27:16 +0000
(18:27 -0500)
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>
drivers/ata/libata-sff.c
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diff --git
a/drivers/ata/libata-sff.c
b/drivers/ata/libata-sff.c
index 114fa81deb8349b22bcfae623ddff948a6d50770..942aeba2940af1135ba971b794a6ef84781b21a7 100644
(file)
--- a/
drivers/ata/libata-sff.c
+++ b/
drivers/ata/libata-sff.c
@@
-827,7
+827,8
@@
void ata_bmdma_error_handler(struct ata_port *ap)
*/
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
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