virtio_free_region_cache() is called within call_rcu(), always with a non-NULL argument. Ensure new code keep it that way by replacing the NULL check by an assertion. Add a comment this function is called within call_rcu().
Signed-off-by: Philippe Mathieu-Daudé <[email protected]> --- hw/virtio/virtio.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index a5214bca612..3a1f6c520cb 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -133,12 +133,10 @@ struct VirtQueue QLIST_ENTRY(VirtQueue) node; }; +/* Called within call_rcu(). */ static void virtio_free_region_cache(VRingMemoryRegionCaches *caches) { - if (!caches) { - return; - } - + assert(caches != NULL); address_space_cache_destroy(&caches->desc); address_space_cache_destroy(&caches->avail); address_space_cache_destroy(&caches->used); -- 2.31.1
