Fix some minor seg faults

This commit was SVN r3568.

src/mca/coll/basic/coll_basic_reduce_scatter.c

@@ -253,7 +253,8 @@ int mca_coll_basic_reduce_scatter_inter(void *sbuf, void *rbuf, int *rcounts,
             tcount += rcounts[i];
         }
 
-        err = ompi_request_wait_all (rsize, reqs, MPI_STATUSES_IGNORE);
+        err = ompi_request_wait_all (rsize, comm->c_coll_basic_data->mccb_reqs,
+                                     MPI_STATUSES_IGNORE);
         if ( OMPI_SUCCESS != err ) {
             goto exit;
         }

src/mca/coll/basic/coll_basic_scatter.c

@@ -135,7 +135,8 @@ int mca_coll_basic_scatter_inter(void *sbuf, int scount,
           }
       }
       
-      err = ompi_request_wait_all (size, reqs, MPI_STATUSES_IGNORE);
+      err = ompi_request_wait_all (size, comm->c_coll_basic_data->mccb_reqs,
+                                   MPI_STATUSES_IGNORE);
   }
   
   return err;