Merge branch 'maint'

diff --git a/read-cache.c b/read-cache.c
index f0ba2247980cc938cc3f821a18e3b328966c4e06..a857c8e12fe4c83e98ccbd772b21fd3e66913ea5 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -1159,7 +1159,7 @@ int read_index_from(struct index_state *istate, const char *path)
        size_t mmap_size;
 
        errno = EBUSY;
-       if (istate->alloc)
+       if (istate->initialized)
                return istate->cache_nr;
 
        errno = ENOENT;
@@ -1199,6 +1199,7 @@ int read_index_from(struct index_state *istate, const char *path)
         * index size
         */
        istate->alloc = xmalloc(estimate_cache_size(mmap_size, istate->cache_nr));
+       istate->initialized = 1;
 
        src_offset = sizeof(*hdr);
        dst_offset = 0;
@@ -1251,6 +1252,7 @@ int discard_index(struct index_state *istate)
        cache_tree_free(&(istate->cache_tree));
        free(istate->alloc);
        istate->alloc = NULL;
+       istate->initialized = 0;
 
        /* no need to throw away allocated active_cache */
        return 0;