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| author | James Smart <james.smart@avagotech.com> | 2015-05-22 10:42:39 -0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-06-13 08:22:04 -0700 |
| commit | 5116fbf136ea21b8678a85eee5c03508736ada9f (patch) | |
| tree | 937f71f6ddc91f4c40574d40f6667e8b493202de /drivers/scsi | |
| parent | 8b0dff14164d3f43eba8365950b506d898e0e1e6 (diff) | |
| download | linux-5116fbf136ea21b8678a85eee5c03508736ada9f.tar.bz2 | |
lpfc: Fix scsi prep dma buf error.
Didn't check for less-than-or-equal zero. Means we may later call
scsi_dma_unmap() even though we don't have valid mappings.
Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: James Smart <james.smart@avagotech.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_scsi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 4a2a81875cfe..b3b195ff64fe 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -3257,7 +3257,7 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) */ nseg = scsi_dma_map(scsi_cmnd); - if (unlikely(!nseg)) + if (unlikely(nseg <= 0)) return 1; sgl += 1; /* clear the last flag in the fcp_rsp map entry */ |