get_ref_dir(): return early if directory cannot be read

diff --git a/revision.h b/revision.h
index b8e9223954a5d66e01bd1eb342a936495aa67ad1..eb87fd1e2f5d16032cb92d96c4bae9e2397f2978 100644 (file)
--- a/revision.h
+++ b/revision.h
@@ -192,6 +192,7 @@ extern void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ct
                                 const char * const usagestr[]);
 extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
 
+extern void reset_revision_walk(void);
 extern int prepare_revision_walk(struct rev_info *revs);
 extern struct commit *get_revision(struct rev_info *revs);
 extern char *get_revision_mark(const struct rev_info *revs, const struct commit *commit);