From 2505873afe510d8db05665684c056ac8f0b24563 Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Sun, 9 Mar 2008 22:50:40 +0900
Subject: [SCSI] aic79xx: fix IOMMU mapping failure handling
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
drivers/scsi/aic7xxx/aic79xx_osm.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
(limited to 'drivers/scsi/aic7xxx')
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;
--
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