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-rw-r--r--builtin/check-ref-format.c6
-rw-r--r--builtin/commit.c2
-rw-r--r--builtin/grep.c2
-rw-r--r--builtin/remote.c2
4 files changed, 9 insertions, 3 deletions
diff --git a/builtin/check-ref-format.c b/builtin/check-ref-format.c
index 6c40ff110..bc67d3f0a 100644
--- a/builtin/check-ref-format.c
+++ b/builtin/check-ref-format.c
@@ -39,12 +39,14 @@ static char *collapse_slashes(const char *refname)
static int check_ref_format_branch(const char *arg)
{
struct strbuf sb = STRBUF_INIT;
+ const char *name;
int nongit;
setup_git_directory_gently(&nongit);
- if (strbuf_check_branch_ref(&sb, arg))
+ if (strbuf_check_branch_ref(&sb, arg) ||
+ !skip_prefix(sb.buf, "refs/heads/", &name))
die("'%s' is not a valid branch name", arg);
- printf("%s\n", sb.buf + 11);
+ printf("%s\n", name);
strbuf_release(&sb);
return 0;
}
diff --git a/builtin/commit.c b/builtin/commit.c
index d75b3805e..b2a6c7f10 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1492,6 +1492,8 @@ static void print_summary(const char *prefix, const struct object_id *oid,
diff_setup_done(&rev.diffopt);
head = resolve_ref_unsafe("HEAD", 0, NULL, NULL);
+ if (!head)
+ die_errno(_("unable to resolve HEAD after creating commit"));
if (!strcmp(head, "HEAD"))
head = _("detached HEAD");
else
diff --git a/builtin/grep.c b/builtin/grep.c
index 2d65f27d0..5a6cfe6b4 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -431,7 +431,9 @@ static int grep_submodule(struct grep_opt *opt, struct repository *superproject,
* store is no longer global and instead is a member of the repository
* object.
*/
+ grep_read_lock();
add_to_alternates_memory(submodule.objectdir);
+ grep_read_unlock();
if (oid) {
struct object *object;
diff --git a/builtin/remote.c b/builtin/remote.c
index 4f5cac96b..bc8962369 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -565,7 +565,7 @@ static int read_remote_branches(const char *refname,
item = string_list_append(rename->remote_branches, xstrdup(refname));
symref = resolve_ref_unsafe(refname, RESOLVE_REF_READING,
NULL, &flag);
- if (flag & REF_ISSYMREF)
+ if (symref && (flag & REF_ISSYMREF))
item->util = xstrdup(symref);
else
item->util = NULL;