Merge pull request #2832 from evverx/fix-mkfs-btrfs-checking

Fix mkfs.btrfs checking

src/shared/machine-pool.c

@@ -139,7 +139,7 @@ static int setup_machine_raw(uint64_t size, sd_bus_error *error) {
 
                 execlp("mkfs.btrfs", "-Lvar-lib-machines", tmp, NULL);
                 if (errno == ENOENT)
-                        return 99;
+                        _exit(99);
 
                 _exit(EXIT_FAILURE);
         }
@@ -239,10 +239,8 @@ int setup_machine_directory(uint64_t size, sd_bus_error *error) {
         }
 
         r = mkfs_exists("btrfs");
-        if (r == -ENOENT) {
-                log_debug("mkfs.btrfs is missing, cannot create loopback file for /var/lib/machines.");
-                return 0;
-        }
+        if (r == 0)
+                return sd_bus_error_set_errnof(error, ENOENT, "Cannot set up /var/lib/machines, mkfs.btrfs is missing");
         if (r < 0)
                 return r;