diff.c: Do not initialize a variable, which gets reassigned anyway.

diff --git a/submodule.c b/submodule.c
index 25413deb1f7f5a7094213cbf356b19b1c9673bea..975bc87e48b33e70bd7c38e82b7f59e34bb81ca3 100644 (file)
--- a/submodule.c
+++ b/submodule.c
@@ -127,7 +127,6 @@ void gitmodules_config(void)
 int parse_submodule_config_option(const char *var, const char *value)
 {
        struct string_list_item *config;
-       struct strbuf submodname = STRBUF_INIT;
        const char *name, *key;
        int namelen;
 
@@ -135,37 +134,36 @@ int parse_submodule_config_option(const char *var, const char *value)
                return 0;
 
        if (!strcmp(key, "path")) {
-               strbuf_add(&submodname, name, namelen);
                config = unsorted_string_list_lookup(&config_name_for_path, value);
                if (config)
                        free(config->util);
                else
                        config = string_list_append(&config_name_for_path, xstrdup(value));
-               config->util = strbuf_detach(&submodname, NULL);
-               strbuf_release(&submodname);
+               config->util = xmemdupz(name, namelen);
        } else if (!strcmp(key, "fetchrecursesubmodules")) {
-               strbuf_add(&submodname, name, namelen);
-               config = unsorted_string_list_lookup(&config_fetch_recurse_submodules_for_name, submodname.buf);
+               char *name_cstr = xmemdupz(name, namelen);
+               config = unsorted_string_list_lookup(&config_fetch_recurse_submodules_for_name, name_cstr);
                if (!config)
-                       config = string_list_append(&config_fetch_recurse_submodules_for_name,
-                                                   strbuf_detach(&submodname, NULL));
+                       config = string_list_append(&config_fetch_recurse_submodules_for_name, name_cstr);
+               else
+                       free(name_cstr);
                config->util = (void *)(intptr_t)parse_fetch_recurse_submodules_arg(var, value);
-               strbuf_release(&submodname);
        } else if (!strcmp(key, "ignore")) {
+               char *name_cstr;
+
                if (strcmp(value, "untracked") && strcmp(value, "dirty") &&
                    strcmp(value, "all") && strcmp(value, "none")) {
                        warning("Invalid parameter \"%s\" for config option \"submodule.%s.ignore\"", value, var);
                        return 0;
                }
 
-               strbuf_add(&submodname, name, namelen);
-               config = unsorted_string_list_lookup(&config_ignore_for_name, submodname.buf);
-               if (config)
+               name_cstr = xmemdupz(name, namelen);
+               config = unsorted_string_list_lookup(&config_ignore_for_name, name_cstr);
+               if (config) {
                        free(config->util);
-               else
-                       config = string_list_append(&config_ignore_for_name,
-                                                   strbuf_detach(&submodname, NULL));
-               strbuf_release(&submodname);
+                       free(name_cstr);
+               } else
+                       config = string_list_append(&config_ignore_for_name, name_cstr);
                config->util = xstrdup(value);
                return 0;
        }
@@ -263,7 +261,7 @@ void show_submodule_summary(FILE *f, const char *path,
                const char *del, const char *add, const char *reset)
 {
        struct rev_info rev;
-       struct commit *left = left, *right = right;
+       struct commit *left = NULL, *right = NULL;
        const char *message = NULL;
        struct strbuf sb = STRBUF_INIT;
        int fast_forward = 0, fast_backward = 0;
@@ -277,10 +275,8 @@ void show_submodule_summary(FILE *f, const char *path,
        else if (!(left = lookup_commit_reference(one)) ||
                 !(right = lookup_commit_reference(two)))
                message = "(commits not present)";
-
-       if (!message &&
-           prepare_submodule_summary(&rev, path, left, right,
-                                       &fast_forward, &fast_backward))
+       else if (prepare_submodule_summary(&rev, path, left, right,
+                                          &fast_forward, &fast_backward))
                message = "(revision walker failed)";
 
        if (dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
@@ -304,11 +300,12 @@ void show_submodule_summary(FILE *f, const char *path,
                strbuf_addf(&sb, "%s:%s\n", fast_backward ? " (rewind)" : "", reset);
        fwrite(sb.buf, sb.len, 1, f);
 
-       if (!message) {
+       if (!message) /* only NULL if we succeeded in setting up the walk */
                print_submodule_summary(&rev, f, del, add, reset);
+       if (left)
                clear_commit_marks(left, ~0);
+       if (right)
                clear_commit_marks(right, ~0);
-       }
 
        strbuf_release(&sb);
 }