From c04bbc812b05b304a9118687d0e0a47e35f00d1d Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 15 Jul 2008 21:21:51 +0200 Subject: [PATCH] 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 Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/scsi/ide-scsi.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index e67cf8aa946..ed92cf7a768 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -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; -- 2.41.1