Update Linux to v5.10.157

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.157.tar.xz

Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I7b30d9e98d8c465d6b44de8e7433b4a40b3289ba
diff --git a/net/batman-adv/hard-interface.h b/net/batman-adv/hard-interface.h
index b1855d9..ba5850c 100644
--- a/net/batman-adv/hard-interface.h
+++ b/net/batman-adv/hard-interface.h
@@ -113,6 +113,9 @@
  */
 static inline void batadv_hardif_put(struct batadv_hard_iface *hard_iface)
 {
+	if (!hard_iface)
+		return;
+
 	kref_put(&hard_iface->refcount, batadv_hardif_release);
 }