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[SCSI] aic7xxx: 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>
This commit is contained in:
FUJITA Tomonori 2008-03-09 22:50:41 +09:00 committed by James Bottomley
parent ed5f606fef
commit 647b242562
1 changed files with 7 additions and 3 deletions
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10
drivers/scsi/aic7xxx/aic7xxx_osm.c
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@ -1398,12 +1398,18 @@ ahc_linux_run_command(struct ahc_softc *ahc, struct ahc_linux_device *dev,
return SCSI_MLQUEUE_DEVICE_BUSY;
}
nseg = scsi_dma_map(cmd);
if (nseg < 0)
return SCSI_MLQUEUE_HOST_BUSY;
/*
* Get an scb to use.
*/
scb = ahc_get_scb(ahc);
if (!scb)
if (!scb) {
scsi_dma_unmap(cmd);
return SCSI_MLQUEUE_HOST_BUSY;
}
scb->io_ctx = cmd;
scb->platform_data->dev = dev;
@ -1464,8 +1470,6 @@ ahc_linux_run_command(struct ahc_softc *ahc, struct ahc_linux_device *dev,
ahc_set_sense_residual(scb, 0);
scb->sg_count = 0;
nseg = scsi_dma_map(cmd);
BUG_ON(nseg < 0);
if (nseg > 0) {
struct ahc_dma_seg *sg;
struct scatterlist *cur_seg;