fixed memory leak

src/clib/pioc_sc.c

@@ -150,12 +150,6 @@ PIO_Offset GCDblocksize(int arrlen, const PIO_Offset *arr_in)
     /* Check inputs. */
     pioassert(arrlen > 0 && arr_in, "invalid input", __FILE__, __LINE__);
 
-    /* Allocate arrays. */
-    if (!(loc_arr = malloc(sizeof(PIO_Offset) * (arrlen - 1))))
-        return PIO_ENOMEM;
-    if (!(del_arr = malloc(sizeof(PIO_Offset) * (arrlen - 1))))
-        return PIO_ENOMEM;
-
     /* Count the number of contiguous blocks in arr_in. If any if
        these blocks is of size 1, we are done and can return.
        Otherwise numtimes is the number of blocks. */
@@ -170,6 +164,12 @@ PIO_Offset GCDblocksize(int arrlen, const PIO_Offset *arr_in)
         }
     }
 
+    /* Allocate arrays. */
+    if (!(loc_arr = malloc(sizeof(PIO_Offset) * (arrlen - 1))))
+        return PIO_ENOMEM;
+    if (!(del_arr = malloc(sizeof(PIO_Offset) * (arrlen - 1))))
+        return PIO_ENOMEM;
+
     /* If numtimes is 0 the all of the data in arr_in is contiguous
      * and numblks=1. Not sure why I have three different variables
      * here, seems like n,numblks and numtimes could be combined. */