crashfix on error

--HG--
branch : HEAD

diff --git a/src/lib-index/mail-index.c b/src/lib-index/mail-index.c
index 48d2e0adf2a3730041ea6abdbc67b1ac41728725..acb30e168a067c859c3e622224ad7f9e3c97c4a4 100644 (file)
--- a/src/lib-index/mail-index.c
+++ b/src/lib-index/mail-index.c
@@ -218,6 +218,7 @@ static int mail_index_mmap(struct mail_index *index, struct mail_index_map *map)
        }
 
        hdr = map->mmap_base;
+       map->hdr = hdr;
        map->mmap_used_size = hdr->header_size +
                hdr->messages_count * index->record_size;
 
@@ -226,12 +227,11 @@ static int mail_index_mmap(struct mail_index *index, struct mail_index_map *map)
                        index->record_size;
                mail_index_set_error(index, "Corrupted index file %s: "
                                     "messages_count too large (%u > %u)",
-                                    index->filepath, map->hdr->messages_count,
+                                    index->filepath, hdr->messages_count,
                                     records_count);
                return 0;
        }
 
-       map->hdr = hdr;
        if (map->hdr->base_header_size < sizeof(*map->hdr)) {
                /* header smaller than ours, make a copy so our newer headers
                   won't have garbage in them */