sd-bus: check return value of vasprintf

[elogind.git] / src / libsystemd / sd-bus / bus-message.c

diff --git a/src/libsystemd/sd-bus/bus-message.c b/src/libsystemd/sd-bus/bus-message.c
index c058b06f41b473dfbe43327ba987328f2a97fd13..c7cb2e60bc1579caa6781cbf455242d7bc1aae1f 100644 (file)
--- a/src/libsystemd/sd-bus/bus-message.c
+++ b/src/libsystemd/sd-bus/bus-message.c
@@ -28,6 +28,7 @@
 #include "strv.h"
 #include "time-util.h"
 #include "cgroup-util.h"
+#include "memfd.h"
 
 #include "sd-bus.h"
 #include "bus-message.h"
@@ -126,16 +127,17 @@ static void message_free(sd_bus_message *m) {
 
         message_reset_parts(m);
 
-        if (m->free_kdbus)
-                free(m->kdbus);
-
         if (m->release_kdbus) {
-                uint64_t off;
+                struct kdbus_cmd_free cmd_free;
 
-                off = (uint8_t *)m->kdbus - (uint8_t *)m->bus->kdbus_buffer;
-                ioctl(m->bus->input_fd, KDBUS_CMD_FREE, &off);
+                cmd_free.flags = 0;
+                cmd_free.offset = (uint8_t *)m->kdbus - (uint8_t *)m->bus->kdbus_buffer;
+                (void) ioctl(m->bus->input_fd, KDBUS_CMD_FREE, &cmd_free);
         }
 
+        if (m->free_kdbus)
+                free(m->kdbus);
+
         sd_bus_unref(m->bus);
 
         if (m->free_fds) {
@@ -5336,7 +5338,7 @@ int bus_header_message_size(struct bus_header *h, size_t *sum) {
 }
 
 _public_ int sd_bus_message_get_errno(sd_bus_message *m) {
-        assert_return(m, -EINVAL);
+        assert_return(m, EINVAL);
 
         if (m->header->type != SD_BUS_MESSAGE_METHOD_ERROR)
                 return 0;