[SCSI] hpsa: clarify obscure comment in adjust_hpsa_scsi_table

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index b91ccd4..42295c4 100644 (file)
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -838,7 +838,11 @@ static void adjust_hpsa_scsi_table(struct ctlr_info *h, int hostno,
                        (void) hpsa_scsi_add_entry(h, hostno, sd[entry],
                                added, &nadded);
                        /* add can't fail, we just removed one. */
-                       sd[entry] = NULL; /* prevent it from being freed */
+
+                       /* Set it to NULL to prevent it from being freed
+                        * at the bottom of hpsa_update_scsi_devices()
+                        */
+                       sd[entry] = NULL;
                }
                i++;
        }