[SCSI] pmcraid: fix to avoid twice scsi_dma_unmap for a command

For a particular driver error condition, driver was doing double
scsi_dma_unmaps. Driver was calling scsi_dma_unmap in
pmcraid_error_handler and return 0. This pmcraid_error_handler is called
by pmcraid_io_done which will do scsi_dma_unmap again when it has
return 0 from pmcraid_error_handler.

Signed-off-by: James Bottomley <James.Bottomley@suse.de>

diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index e7d2688..b6f1ef9 100644 (file)
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -2483,14 +2483,12 @@ static int pmcraid_error_handler(struct pmcraid_cmd *cmd)
                        sense_copied = 1;
                }
 
-               if (RES_IS_GSCSI(res->cfg_entry)) {
+               if (RES_IS_GSCSI(res->cfg_entry))
                        pmcraid_cancel_all(cmd, sense_copied);
-               } else if (sense_copied) {
+               else if (sense_copied)
                        pmcraid_erp_done(cmd);
-                       return 0;
-               } else  {
+               else
                        pmcraid_request_sense(cmd);
-               }
 
                return 1;