submodule-config: combine early return code into one goto

So we have simpler return handling code and all the cleanup code in
almost one place.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/submodule-config.c b/submodule-config.c
index 853989e558645e9fe43844a45e0fb39a25886c7f..a8875745909f65325c055b5fe5c4a4dc1383ff1b 100644 (file)
--- a/submodule-config.c
+++ b/submodule-config.c
@@ -376,7 +376,7 @@ static const struct submodule *config_from(struct submodule_cache *cache,
 {
        struct strbuf rev = STRBUF_INIT;
        unsigned long config_size;
-       char *config;
+       char *config = NULL;
        unsigned char sha1[20];
        enum object_type type;
        const struct submodule *submodule = NULL;
@@ -397,10 +397,8 @@ static const struct submodule *config_from(struct submodule_cache *cache,
                return entry->config;
        }
 
-       if (!gitmodule_sha1_from_commit(commit_sha1, sha1, &rev)) {
-               strbuf_release(&rev);
-               return NULL;
-       }
+       if (!gitmodule_sha1_from_commit(commit_sha1, sha1, &rev))
+               goto out;
 
        switch (lookup_type) {
        case lookup_name:
@@ -410,22 +408,12 @@ static const struct submodule *config_from(struct submodule_cache *cache,
                submodule = cache_lookup_path(cache, sha1, key);
                break;
        }
-       if (submodule) {
-               strbuf_release(&rev);
-               return submodule;
-       }
+       if (submodule)
+               goto out;
 
        config = read_sha1_file(sha1, &type, &config_size);
-       if (!config) {
-               strbuf_release(&rev);
-               return NULL;
-       }
-
-       if (type != OBJ_BLOB) {
-               strbuf_release(&rev);
-               free(config);
-               return NULL;
-       }
+       if (!config || type != OBJ_BLOB)
+               goto out;
 
        /* fill the submodule config into the cache */
        parameter.cache = cache;
@@ -445,6 +433,11 @@ static const struct submodule *config_from(struct submodule_cache *cache,
        default:
                return NULL;
        }
+
+out:
+       strbuf_release(&rev);
+       free(config);
+       return submodule;
 }
 
 static const struct submodule *config_from_path(struct submodule_cache *cache,