trivial: move a variable from function to if-scope

Index: linux-2.6/drivers/scsi/scsi_error.c
===================================================================
@@ -132,7 +132,6 @@ enum blk_eh_timer_return scsi_times_out(
 {
 	struct scsi_cmnd *scmd = req->special;
 	enum blk_eh_timer_return (*eh_timed_out)(struct scsi_cmnd *);
-	enum blk_eh_timer_return rtn = eh_timed_out(scmd);
 
 	scsi_log_completion(scmd, TIMEOUT_ERROR);
 

@@ -152,6 +151,8 @@ enum blk_eh_timer_return scsi_times_out(
 		eh_timed_out = NULL;
 
 	if (eh_timed_out) {
+		enum blk_eh_timer_return rtn = eh_timed_out(scmd);
+
 		switch (rtn) {
 		case BLK_EH_NOT_HANDLED:
 			break;