[SCSI] qla4xxx: use iscsi class session state check ready

This has qla4xxx use the iscsi class's check ready function
in the queue command function, so all iscsi drivers return the
same error value for common problems.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Cc: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index a87fb9f00ac4f5b96d7a859ca6734a353dc8b4ed..437d169a9814fd9f868beb9ce8004448bbd52f51 100644 (file)
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -398,9 +398,21 @@ static int qla4xxx_queuecommand(struct scsi_cmnd *cmd,
 {
        struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
        struct ddb_entry *ddb_entry = cmd->device->hostdata;
+       struct iscsi_cls_session *sess = ddb_entry->sess;
        struct srb *srb;
        int rval;
 
+       if (!sess) {
+               cmd->result = DID_IMM_RETRY << 16;
+               goto qc_fail_command;
+       }
+
+       rval = iscsi_session_chkready(sess);
+       if (rval) {
+               cmd->result = rval;
+               goto qc_fail_command;
+       }
+
        if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE) {
                if (atomic_read(&ddb_entry->state) == DDB_STATE_DEAD) {
                        cmd->result = DID_NO_CONNECT << 16;