From 2505873afe510d8db05665684c056ac8f0b24563 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Sun, 9 Mar 2008 22:50:40 +0900 Subject: [PATCH] [SCSI] aic79xx: fix IOMMU mapping failure handling Signed-off-by: FUJITA Tomonori Signed-off-by: James Bottomley --- drivers/scsi/aic7xxx/aic79xx_osm.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 72fccd9f40df..0081aa357c8b 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -1413,6 +1413,10 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, unsigned long flags; int nseg; + nseg = scsi_dma_map(cmd); + if (nseg < 0) + return SCSI_MLQUEUE_HOST_BUSY; + ahd_lock(ahd, &flags); /* @@ -1430,6 +1434,7 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { ahd->flags |= AHD_RESOURCE_SHORTAGE; ahd_unlock(ahd, &flags); + scsi_dma_unmap(cmd); return SCSI_MLQUEUE_HOST_BUSY; } @@ -1485,8 +1490,6 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, ahd_set_sense_residual(scb, 0); scb->sg_count = 0; - nseg = scsi_dma_map(cmd); - BUG_ON(nseg < 0); if (nseg > 0) { void *sg = scb->sg_list; struct scatterlist *cur_seg; -- 2.20.1