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pata_radisys: fix checking of DMA state

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Checking if DMA is enabled should be done via the
ata_dma_enabled helper function, since the init state
0xff indicates disabled.
Change based on code review, not tested due to lack of hardware.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
This commit is contained in:
Reimar Döffinger 2021-10-12 08:27:49 +02:00 committed by Damien Le Moal
parent 492402ce70
commit 1af5f7af24
1 changed files with 2 additions and 2 deletions
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4
drivers/ata/pata_radisys.c
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@ -172,8 +172,8 @@ static unsigned int radisys_qc_issue(struct ata_queued_cmd *qc)
if (adev != ap->private_data) {
/* UDMA timing is not shared */
if (adev->dma_mode < XFER_UDMA_0) {
if (adev->dma_mode)
if (adev->dma_mode < XFER_UDMA_0 || !ata_dma_enabled(adev)) {
if (ata_dma_enabled(adev))
radisys_set_dmamode(ap, adev);
else if (adev->pio_mode)
radisys_set_piomode(ap, adev);