diff options
Diffstat (limited to 'read-cache.c')
| -rw-r--r-- | read-cache.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/read-cache.c b/read-cache.c index 2f8159fb16..79e3bbe024 100644 --- a/read-cache.c +++ b/read-cache.c @@ -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"); } @@ -1800,6 +1796,8 @@ int write_index(struct index_state *istate, int newfd) continue; if (!ce_uptodate(ce) && is_racy_timestamp(istate, ce)) ce_smudge_racily_clean_entry(ce); + if (is_null_sha1(ce->sha1)) + return error("cache entry has null sha1: %s", ce->name); if (ce_write_entry(&c, newfd, ce, previous_name) < 0) return -1; } |