diff options
| -rw-r--r-- | drivers/ide/ide-tape.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index e8a5852fa2d4..1ce8b31453c5 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -984,8 +984,10 @@ static ide_startstop_t idetape_transfer_pc(ide_drive_t *drive) ide_set_handler(drive, &idetape_pc_intr, IDETAPE_WAIT_CMD, NULL); /* Begin DMA, if necessary */ - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) + if (pc->flags & PC_FLAG_DMA_OK) { + pc->flags |= PC_FLAG_DMA_IN_PROGRESS; hwif->dma_ops->dma_start(drive); + } /* Send the actual packet */ hwif->output_data(drive, NULL, pc->c, 12); @@ -1053,11 +1055,11 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive, if ((pc->flags & PC_FLAG_DMA_OK) && drive->using_dma) dma_ok = !hwif->dma_ops->dma_setup(drive); + if (!dma_ok) + pc->flags &= ~PC_FLAG_DMA_OK; + ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_DEVICE, bcount, dma_ok); - if (dma_ok) - /* Will begin DMA later */ - pc->flags |= PC_FLAG_DMA_IN_PROGRESS; if (test_bit(IDETAPE_FLAG_DRQ_INTERRUPT, &tape->flags)) { ide_execute_command(drive, WIN_PACKETCMD, &idetape_transfer_pc, IDETAPE_WAIT_CMD, NULL); |