sysroot: Add a few more assertions about `boot_fd`

These places are all safe, but it would catch bugs in the future
more clearly to trip an assertion here.

diff --git a/src/libostree/ostree-sysroot-deploy.c b/src/libostree/ostree-sysroot-deploy.c
index 456b0c041d3ed82f79a840258696ca60521490a9..3b04267c809bb92dcefe4ad0385fab922b97cd3f 100644 (file)
--- a/src/libostree/ostree-sysroot-deploy.c
+++ b/src/libostree/ostree-sysroot-deploy.c
@@ -1614,6 +1614,7 @@ full_system_sync (OstreeSysroot     *self,
     return FALSE;
 
   start_msec = g_get_monotonic_time () / 1000;
+  g_assert_cmpint (self->boot_fd, !=, -1);
   if (!fsfreeze_thaw_cycle (self, self->boot_fd, cancellable, error))
     return FALSE;
   end_msec = g_get_monotonic_time () / 1000;
@@ -3526,6 +3527,7 @@ _ostree_sysroot_boot_complete (OstreeSysroot *self,
     return FALSE;
 
   glnx_autofd int failure_fd = -1;
+  g_assert_cmpint (self->boot_fd, !=, -1);
   if (!ot_openat_ignore_enoent (self->boot_fd, _OSTREE_FINALIZE_STAGED_FAILURE_PATH, &failure_fd, error))
     return FALSE;
   // If we didn't find a failure log, then there's nothing to do right now.