X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Frrd_restore.c;h=39148e89e80dc490bfd2ab946b91029d02448fba;hb=2b10154d69ff1d0db4007d55eaa301a233c7c086;hp=fde83ae64abf7b7e5ed6b318629c915ade429fe9;hpb=a3f32f5a1f6c5c58a3028aca1e4b6ae5472e76b6;p=rrdtool.git

diff --git a/src/rrd_restore.c b/src/rrd_restore.c
index fde83ae..39148e8 100644
--- a/src/rrd_restore.c
+++ b/src/rrd_restore.c
@@ -788,7 +788,7 @@ static int parse_tag_rra(
 
     /* All space successfully allocated, increment number of RRAs. */
     rrd->stat_head->rra_cnt++;
-
+    
     status = 0;
     while ((element = get_xml_element(reader)) != NULL){
         if (xmlStrcasecmp(element, (const xmlChar *) "cf") == 0)
@@ -827,7 +827,7 @@ static int parse_tag_rra(
                 return status;
         }
         else if (xmlStrcasecmp(element,(const xmlChar *) "/rra") == 0){
-            xmlFree(element);            
+            xmlFree(element);
             return status;
         }  /* }}} */        
        else {
@@ -1180,15 +1180,16 @@ static int write_file(
         unsigned long num_rows = rrd->rra_def[i].row_cnt;
         unsigned long cur_row = rrd->rra_ptr[i].cur_row;
         unsigned long ds_cnt = rrd->stat_head->ds_cnt;
+        if (num_rows > 0){
+            fwrite(rrd->rrd_value +
+                (rra_offset + num_rows - 1 - cur_row) * ds_cnt,
+                sizeof(rrd_value_t), (cur_row + 1) * ds_cnt, fh);
 
-        fwrite(rrd->rrd_value +
-               (rra_offset + num_rows - 1 - cur_row) * ds_cnt,
-               sizeof(rrd_value_t), (cur_row + 1) * ds_cnt, fh);
-
-        fwrite(rrd->rrd_value + rra_offset * ds_cnt,
-               sizeof(rrd_value_t), (num_rows - 1 - cur_row) * ds_cnt, fh);
+            fwrite(rrd->rrd_value + rra_offset * ds_cnt,
+                sizeof(rrd_value_t), (num_rows - 1 - cur_row) * ds_cnt, fh);
 
-        rra_offset += num_rows;
+            rra_offset += num_rows;
+        }
     }
 
     /* lets see if we had an error */