lpfc: Fix driver crash when module parameter lpfc_fcp_io_channel set to 16

Fix driver crash when module parameter lpfc_fcp_io_channel set to 16

Signed-off-by: Dick Kennedy <dick.kennedy@avagotech.com>
Signed-off-by: James Smart <james.smart@avagotech.com>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index db9446c612dadf1ffebb3de4803eb4a59ec6442f..5915407d19aa9ef42dd8f06953779c2ade0a8701 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -8833,9 +8833,12 @@ found:
                                 * already mapped to this phys_id.
                                 */
                                if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
-                                       chann[saved_chann] =
-                                               cpup->channel_id;
-                                       saved_chann++;
+                                       if (saved_chann <=
+                                           LPFC_FCP_IO_CHAN_MAX) {
+                                               chann[saved_chann] =
+                                                       cpup->channel_id;
+                                               saved_chann++;
+                                       }
                                        goto out;
                                }