[SCSI] iscsi regression: check for zero max session cmds

The old tools did not set max session cmds. This is a regression.
I removed the check when merging the power of 2 patch.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

2 files changed, 3 insertions, 3 deletions

diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 59f8445eab0d..bdd7de7da39a 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1708,8 +1708,8 @@ iscsi_session_setup(struct iscsi_transport *iscsit,
                 qdepth = ISCSI_DEF_CMD_PER_LUN;
         }
 
-        if (!is_power_of_2(cmds_max) ||
-            cmds_max >= ISCSI_MGMT_ITT_OFFSET) {
+        if (!is_power_of_2(cmds_max) || cmds_max >= ISCSI_MGMT_ITT_OFFSET ||
+            cmds_max < 2) {
                 if (cmds_max != 0)
                         printk(KERN_ERR "iscsi: invalid can_queue of %d. "
                                "can_queue must be a power of 2 and between "
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 9981682d5302..dfb026b95a6a 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -33,7 +33,7 @@
 #define ISCSI_SESSION_ATTRS 19
 #define ISCSI_CONN_ATTRS 13
 #define ISCSI_HOST_ATTRS 4
-#define ISCSI_TRANSPORT_VERSION "2.0-868"
+#define ISCSI_TRANSPORT_VERSION "2.0-869"
 
 struct iscsi_internal {
         int daemon_pid;