Commit c04bbc81 authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
Browse files

ide-scsi: fix handling of DMA errors in idescsi_pc_intr()



Check return value of ->dma_end method and if there was a DMA error
handle it accordingly (set PC_FLAG_DMA_ERROR pc flag, don't update
pc->xferred and increase rq->errors).

Also move debug message in the right place while at it.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent e8e25f03
......@@ -388,11 +388,13 @@ static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive)
return ide_stopped;
}
if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) {
if (hwif->dma_ops->dma_end(drive))
pc->flags |= PC_FLAG_DMA_ERROR;
else
pc->xferred = pc->req_xfer;
#if IDESCSI_DEBUG_LOG
printk ("ide-scsi: %s: DMA complete\n", drive->name);
#endif /* IDESCSI_DEBUG_LOG */
pc->xferred = pc->req_xfer;
(void)hwif->dma_ops->dma_end(drive);
}
/* Clear the interrupt */
......@@ -405,7 +407,7 @@ static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive)
" transferred\n", pc->xferred);
pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS;
local_irq_enable_in_hardirq();
if (stat & ERR_STAT)
if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR))
rq->errors++;
idescsi_end_request (drive, 1, 0);
return ide_stopped;
......
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