chiark / gitweb /
core: some more _cleanup_free_
authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Mon, 21 Oct 2013 23:54:10 +0000 (19:54 -0400)
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Sat, 16 Nov 2013 03:53:14 +0000 (22:53 -0500)
src/core/load-fragment.c
src/core/unit.c

index b7e848c..72c4637 100644 (file)
@@ -2403,9 +2403,10 @@ static int merge_by_names(Unit **u, Set *names, const char *id) {
 
 static int load_from_path(Unit *u, const char *path) {
         int r;
-        Set *symlink_names;
-        FILE *f = NULL;
-        char *filename = NULL, *id = NULL;
+        _cleanup_set_free_free_ Set *symlink_names = NULL;
+        _cleanup_fclose_ FILE *f = NULL;
+        _cleanup_free_ char *filename = NULL;
+        char *id = NULL;
         Unit *merged;
         struct stat st;
 
@@ -2419,10 +2420,8 @@ static int load_from_path(Unit *u, const char *path) {
         if (path_is_absolute(path)) {
 
                 filename = strdup(path);
-                if (!filename) {
-                        r = -ENOMEM;
-                        goto finish;
-                }
+                if (!filename)
+                        return -ENOMEM;
 
                 r = open_follow(&filename, &f, symlink_names, &id);
                 if (r < 0) {
@@ -2430,7 +2429,7 @@ static int load_from_path(Unit *u, const char *path) {
                         filename = NULL;
 
                         if (r != -ENOENT)
-                                goto finish;
+                                return r;
                 }
 
         } else  {
@@ -2442,10 +2441,8 @@ static int load_from_path(Unit *u, const char *path) {
                          * follow all symlinks and add their name to our unit
                          * name set while doing so */
                         filename = path_make_absolute(path, *p);
-                        if (!filename) {
-                                r = -ENOMEM;
-                                goto finish;
-                        }
+                        if (!filename)
+                                return -ENOMEM;
 
                         if (u->manager->unit_path_cache &&
                             !set_get(u->manager->unit_path_cache, filename))
@@ -2458,7 +2455,7 @@ static int load_from_path(Unit *u, const char *path) {
                                 filename = NULL;
 
                                 if (r != -ENOENT)
-                                        goto finish;
+                                        return r;
 
                                 /* Empty the symlink names for the next run */
                                 set_clear_free(symlink_names);
@@ -2469,27 +2466,22 @@ static int load_from_path(Unit *u, const char *path) {
                 }
         }
 
-        if (!filename) {
+        if (!filename)
                 /* Hmm, no suitable file found? */
-                r = 0;
-                goto finish;
-        }
+                return 0;
 
         merged = u;
         r = merge_by_names(&merged, symlink_names, id);
         if (r < 0)
-                goto finish;
+                return r;
 
         if (merged != u) {
                 u->load_state = UNIT_MERGED;
-                r = 0;
-                goto finish;
+                return 0;
         }
 
-        if (fstat(fileno(f), &st) < 0) {
-                r = -errno;
-                goto finish;
-        }
+        if (fstat(fileno(f), &st) < 0)
+                return -errno;
 
         if (null_or_empty(&st))
                 u->load_state = UNIT_MASKED;
@@ -2501,7 +2493,7 @@ static int load_from_path(Unit *u, const char *path) {
                                  config_item_perf_lookup,
                                  (void*) load_fragment_gperf_lookup, false, true, u);
                 if (r < 0)
-                        goto finish;
+                        return r;
         }
 
         free(u->fragment_path);
@@ -2517,16 +2509,7 @@ static int load_from_path(Unit *u, const char *path) {
                         u->source_mtime = 0;
         }
 
-        r = 0;
-
-finish:
-        set_free_free(symlink_names);
-        free(filename);
-
-        if (f)
-                fclose(f);
-
-        return r;
+        return 0;
 }
 
 int unit_load_fragment(Unit *u) {
index 15e0a82..84c43f7 100644 (file)
@@ -127,7 +127,8 @@ int unit_add_name(Unit *u, const char *text) {
                 goto fail;
         }
 
-        if ((r = unit_name_to_instance(s, &i)) < 0)
+        r = unit_name_to_instance(s, &i);
+        if (r < 0)
                 goto fail;
 
         if (i && unit_vtable[t]->no_instances) {
@@ -154,13 +155,15 @@ int unit_add_name(Unit *u, const char *text) {
                 goto fail;
         }
 
-        if ((r = set_put(u->names, s)) < 0) {
+        r = set_put(u->names, s);
+        if (r < 0) {
                 if (r == -EEXIST)
                         r = 0;
                 goto fail;
         }
 
-        if ((r = hashmap_put(u->manager->units, s, u)) < 0) {
+        r = hashmap_put(u->manager->units, s, u);
+        if (r < 0) {
                 set_remove(u->names, s);
                 goto fail;
         }
@@ -201,7 +204,8 @@ int unit_choose_id(Unit *u, const char *name) {
                 if (!u->instance)
                         return -EINVAL;
 
-                if (!(t = unit_name_replace_instance(name, u->instance)))
+                t = unit_name_replace_instance(name, u->instance);
+                if (!t)
                         return -ENOMEM;
 
                 name = t;
@@ -213,7 +217,8 @@ int unit_choose_id(Unit *u, const char *name) {
         if (!s)
                 return -ENOENT;
 
-        if ((r = unit_name_to_instance(s, &i)) < 0)
+        r = unit_name_to_instance(s, &i);
+        if (r < 0)
                 return r;
 
         u->id = s;
@@ -546,14 +551,13 @@ static void merge_dependencies(Unit *u, Unit *other, UnitDependency d) {
         SET_FOREACH(back, other->dependencies[d], i) {
                 UnitDependency k;
 
-                for (k = 0; k < _UNIT_DEPENDENCY_MAX; k++)
-                        if ((r = set_remove_and_put(back->dependencies[k], other, u)) < 0) {
-
-                                if (r == -EEXIST)
-                                        set_remove(back->dependencies[k], other);
-                                else
-                                        assert(r == -ENOENT);
-                        }
+                for (k = 0; k < _UNIT_DEPENDENCY_MAX; k++) {
+                        r = set_remove_and_put(back->dependencies[k], other, u);
+                        if (r == -EEXIST)
+                                set_remove(back->dependencies[k], other);
+                        else
+                                assert(r >= 0 || r == -ENOENT);
+                }
         }
 
         complete_move(&u->dependencies[d], &other->dependencies[d]);
@@ -632,7 +636,8 @@ int unit_merge_by_name(Unit *u, const char *name) {
                 if (!u->instance)
                         return -EINVAL;
 
-                if (!(s = unit_name_replace_instance(name, u->instance)))
+                s = unit_name_replace_instance(name, u->instance);
+                if (!s)
                         return -ENOMEM;
 
                 name = s;
@@ -843,7 +848,7 @@ int unit_load_fragment_and_dropin(Unit *u) {
 
         assert(u);
 
-        /* Load a .service file */
+        /* Load a .{service,socket,...} file */
         r = unit_load_fragment(u);
         if (r < 0)
                 return r;
@@ -1280,7 +1285,8 @@ int unit_reload(Unit *u) {
         if (state != UNIT_ACTIVE)
                 return -ENOEXEC;
 
-        if ((following = unit_following(u))) {
+        following = unit_following(u);
+        if (following) {
                 log_debug_unit(u->id, "Redirecting reload request from %s to %s.",
                                u->id, following->id);
                 return unit_reload(following);