lib-index: zero mmap_length after logging error

Logging that mmap(size=0) failed looks suspicious.

diff --git a/src/lib-index/mail-cache.c b/src/lib-index/mail-cache.c
index abdd627c01ff443a7bc1acd1c4b39a5a2d792019..e1652323f22d598f1069250557c4f443bbdd1db5 100644 (file)
--- a/src/lib-index/mail-cache.c
+++ b/src/lib-index/mail-cache.c
@@ -480,12 +480,12 @@ int mail_cache_map(struct mail_cache *cache, size_t offset, size_t size,
        cache->mmap_base = mmap_ro_file(cache->fd, &cache->mmap_length);
        if (cache->mmap_base == MAP_FAILED) {
                cache->mmap_base = NULL;
-               cache->mmap_length = 0;
                if (ioloop_time != cache->last_mmap_error_time) {
                        cache->last_mmap_error_time = ioloop_time;
                        mail_cache_set_syscall_error(cache, t_strdup_printf(
                                "mmap(size=%"PRIuSIZE_T")", cache->mmap_length));
                }
+               cache->mmap_length = 0;
                return -1;
        }
        *data_r = offset > cache->mmap_length ? NULL :