branch: factor out delete_branch_config()

diff --git a/read-cache.c b/read-cache.c
index d2be78ea95e2e554b085721bafa939c9024125ed..fda78bc353afcfd4d01864f2a13158d9c9c55173 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -424,7 +424,7 @@ int cache_name_compare(const char *name1, int len1, const char *name2, int len2)
        return cache_name_stage_compare(name1, len1, 0, name2, len2, 0);
 }
 
-int index_name_stage_pos(const struct index_state *istate, const char *name, int namelen, int stage)
+static int index_name_stage_pos(const struct index_state *istate, const char *name, int namelen, int stage)
 {
        int first, last;
 
@@ -1414,11 +1414,9 @@ int read_index_from(struct index_state *istate, const char *path)
        size_t mmap_size;
        struct strbuf previous_name_buf = STRBUF_INIT, *previous_name;
 
-       errno = EBUSY;
        if (istate->initialized)
                return istate->cache_nr;
 
-       errno = ENOENT;
        istate->timestamp.sec = 0;
        istate->timestamp.nsec = 0;
        fd = open(path, O_RDONLY);
@@ -1431,15 +1429,14 @@ int read_index_from(struct index_state *istate, const char *path)
        if (fstat(fd, &st))
                die_errno("cannot stat the open index");
 
-       errno = EINVAL;
        mmap_size = xsize_t(st.st_size);
        if (mmap_size < sizeof(struct cache_header) + 20)
                die("index file smaller than expected");
 
        mmap = xmmap(NULL, mmap_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
-       close(fd);
        if (mmap == MAP_FAILED)
                die_errno("unable to map index file");
+       close(fd);
 
        hdr = mmap;
        if (verify_hdr(hdr, mmap_size) < 0)
@@ -1495,7 +1492,6 @@ int read_index_from(struct index_state *istate, const char *path)
 
 unmap:
        munmap(mmap, mmap_size);
-       errno = EINVAL;
        die("index file corrupt");
 }