From: Ronny Chevalier Date: Thu, 25 Jul 2013 15:36:01 +0000 (+0200) Subject: dbus: use _cleanup_free_ instead of freeing ourself X-Git-Tag: v207~166 X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=68eda4bd168306f51c90e5d22824c494d709289e dbus: use _cleanup_free_ instead of freeing ourself --- diff --git a/src/core/dbus-execute.c b/src/core/dbus-execute.c index 73590c82b..2402e8c34 100644 --- a/src/core/dbus-execute.c +++ b/src/core/dbus-execute.c @@ -77,12 +77,11 @@ static int bus_execute_append_oom_score_adjust(DBusMessageIter *i, const char *p if (c->oom_score_adjust_set) n = c->oom_score_adjust; else { - char *t; + _cleanup_free_ char *t = NULL; n = 0; if (read_one_line_file("/proc/self/oom_score_adj", &t) >= 0) { safe_atoi(t, &n); - free(t); } } diff --git a/src/core/dbus-job.c b/src/core/dbus-job.c index a85d3185c..4ab88d06c 100644 --- a/src/core/dbus-job.c +++ b/src/core/dbus-job.c @@ -60,7 +60,7 @@ static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_job_append_type, job_type, JobType); static int bus_job_append_unit(DBusMessageIter *i, const char *property, void *data) { Job *j = data; DBusMessageIter sub; - char *p; + _cleanup_free_ char *p = NULL; assert(i); assert(property); @@ -75,12 +75,9 @@ static int bus_job_append_unit(DBusMessageIter *i, const char *property, void *d if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &j->unit->id) || !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) { - free(p); return -ENOMEM; } - free(p); - if (!dbus_message_iter_close_container(i, &sub)) return -ENOMEM; @@ -136,7 +133,7 @@ static DBusHandlerResult bus_job_message_handler(DBusConnection *connection, DBu /* Be nice to gdbus and return introspection data for our mid-level paths */ if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) { - char *introspection = NULL; + _cleanup_free_ char *introspection = NULL; FILE *f; Iterator i; size_t size; @@ -169,7 +166,6 @@ static DBusHandlerResult bus_job_message_handler(DBusConnection *connection, DBu if (ferror(f)) { fclose(f); - free(introspection); goto oom; } @@ -179,12 +175,9 @@ static DBusHandlerResult bus_job_message_handler(DBusConnection *connection, DBu goto oom; if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) { - free(introspection); goto oom; } - free(introspection); - if (!bus_maybe_send_reply(connection, message, reply)) goto oom; diff --git a/src/core/dbus-manager.c b/src/core/dbus-manager.c index e1a169ca2..75e2e45b6 100644 --- a/src/core/dbus-manager.c +++ b/src/core/dbus-manager.c @@ -413,7 +413,7 @@ static int bus_manager_set_log_target(DBusMessageIter *i, const char *property, } static int bus_manager_append_log_level(DBusMessageIter *i, const char *property, void *data) { - char *t; + _cleanup_free_ char *t = NULL; int r; assert(i); @@ -426,7 +426,6 @@ static int bus_manager_append_log_level(DBusMessageIter *i, const char *property if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t)) r = -ENOMEM; - free(t); return r; } @@ -1191,7 +1190,7 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, goto oom; } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) { - char *introspection = NULL; + _cleanup_free_ char *introspection = NULL; FILE *f; Iterator i; Unit *u; @@ -1217,7 +1216,7 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, fputs(INTROSPECTION_BEGIN, f); HASHMAP_FOREACH_KEY(u, k, m->units, i) { - char *p; + _cleanup_free_ char *p = NULL; if (k != u->id) continue; @@ -1225,12 +1224,10 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, p = bus_path_escape(k); if (!p) { fclose(f); - free(introspection); goto oom; } fprintf(f, "", p); - free(p); } HASHMAP_FOREACH(j, m->jobs, i) @@ -1240,7 +1237,6 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, if (ferror(f)) { fclose(f); - free(introspection); goto oom; } @@ -1250,12 +1246,8 @@ static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, goto oom; if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) { - free(introspection); goto oom; } - - free(introspection); - } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) { SELINUX_ACCESS_CHECK(connection, message, "reload"); diff --git a/src/core/unit.c b/src/core/unit.c index b56be83a3..27119b0cd 100644 --- a/src/core/unit.c +++ b/src/core/unit.c @@ -189,7 +189,8 @@ fail: } int unit_choose_id(Unit *u, const char *name) { - char *s, *t = NULL, *i; + char *s, *i; + _cleanup_free_ char *t = NULL; int r; assert(u); @@ -208,7 +209,6 @@ int unit_choose_id(Unit *u, const char *name) { /* Selects one of the names of this unit as the id */ s = set_get(u->names, (char*) name); - free(t); if (!s) return -ENOENT; @@ -598,7 +598,7 @@ int unit_merge(Unit *u, Unit *other) { int unit_merge_by_name(Unit *u, const char *name) { Unit *other; int r; - char *s = NULL; + _cleanup_free_ char *s = NULL; assert(u); assert(name); @@ -619,7 +619,6 @@ int unit_merge_by_name(Unit *u, const char *name) { else r = unit_merge(u, other); - free(s); return r; } @@ -677,7 +676,7 @@ void unit_dump(Unit *u, FILE *f, const char *prefix) { char *t, **j; UnitDependency d; Iterator i; - char *p2; + _cleanup_free_ char *p2 = NULL; const char *prefix2; char timestamp1[FORMAT_TIMESTAMP_MAX], @@ -811,7 +810,6 @@ void unit_dump(Unit *u, FILE *f, const char *prefix) { if (u->nop_job) job_dump(u->nop_job, f, prefix2); - free(p2); } /* Common implementation for multiple backends */ @@ -1914,7 +1912,7 @@ int unit_add_dependency_by_name(Unit *u, UnitDependency d, const char *name, con int unit_add_two_dependencies_by_name(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference) { Unit *other; int r; - char *s; + _cleanup_free_ char *s = NULL; assert(u); assert(name || path); @@ -1923,19 +1921,17 @@ int unit_add_two_dependencies_by_name(Unit *u, UnitDependency d, UnitDependency return -ENOMEM; if ((r = manager_load_unit(u->manager, name, path, NULL, &other)) < 0) - goto finish; + return r; r = unit_add_two_dependencies(u, d, e, other, add_reference); -finish: - free(s); return r; } int unit_add_dependency_by_name_inverse(Unit *u, UnitDependency d, const char *name, const char *path, bool add_reference) { Unit *other; int r; - char *s; + _cleanup_free_ char *s = NULL; assert(u); assert(name || path); @@ -1944,19 +1940,17 @@ int unit_add_dependency_by_name_inverse(Unit *u, UnitDependency d, const char *n return -ENOMEM; if ((r = manager_load_unit(u->manager, name, path, NULL, &other)) < 0) - goto finish; + return r; r = unit_add_dependency(other, d, u, add_reference); -finish: - free(s); return r; } int unit_add_two_dependencies_by_name_inverse(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference) { Unit *other; int r; - char *s; + _cleanup_free_ char *s = NULL; assert(u); assert(name || path); @@ -1965,13 +1959,11 @@ int unit_add_two_dependencies_by_name_inverse(Unit *u, UnitDependency d, UnitDep return -ENOMEM; if ((r = manager_load_unit(u->manager, name, path, NULL, &other)) < 0) - goto finish; + return r; if ((r = unit_add_two_dependencies(other, d, e, u, add_reference)) < 0) - goto finish; + return r; -finish: - free(s); return r; } @@ -2036,7 +2028,7 @@ int unit_add_default_slice(Unit *u) { if (u->instance) { _cleanup_free_ char *prefix = NULL, *escaped = NULL; - ; + /* Implicitly place all instantiated units in their * own per-template slice */ @@ -2349,7 +2341,7 @@ int unit_deserialize(Unit *u, FILE *f, FDSet *fds) { int unit_add_node_link(Unit *u, const char *what, bool wants) { Unit *device; - char *e; + _cleanup_free_ char *e = NULL; int r; assert(u); @@ -2367,7 +2359,7 @@ int unit_add_node_link(Unit *u, const char *what, bool wants) { return -ENOMEM; r = manager_load_unit(u->manager, e, NULL, NULL, &device); - free(e); + if (r < 0) return r;