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| author | James Smart <james.smart@avagotech.com> | 2015-05-22 10:42:39 -0400 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2015-09-02 15:49:54 +0200 |
| commit | 62d80e38ed89ca1e7dc9424c7c4438d46be924d9 (patch) | |
| tree | a6d715d7d83fd87e5ae7656552f96248aec56d86 | |
| parent | a67172a013953664b1dad03c648200c70b90506c (diff) | |
| download | lwn-62d80e38ed89ca1e7dc9424c7c4438d46be924d9.tar.gz lwn-62d80e38ed89ca1e7dc9424c7c4438d46be924d9.zip | |
lpfc: Fix scsi prep dma buf error.
commit 5116fbf136ea21b8678a85eee5c03508736ada9f upstream.
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>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
| -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 c913e8cc3b26..ed7759980c47 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -3423,7 +3423,7 @@ 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 */ |