[PATCH] ipr: Dead adapter I/O hang fix

The following patch fixes a hang in i/o that could occur if an
adapter was ever declared "dead" by the ipr driver due to repeated
failed attempts to revive the card. The patch now allows ipr to fail
new commands when in this state rather than endlessly return
SCSI_MLQUEUE_HOST_BUSY.
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/ipr.c

@@ -3862,7 +3862,7 @@ static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
 	 * We have told the host to stop giving us new requests, but
 	 * ERP ops don't count. FIXME
 	 */
-	if (unlikely(!ioa_cfg->allow_cmds))
+	if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
 		return SCSI_MLQUEUE_HOST_BUSY;
 
 	/*