diff --git a/crypto/shash.c b/crypto/shash.c
index 2ccc8b0..8f9d883 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -502,5 +502,12 @@
 }
 EXPORT_SYMBOL_GPL(crypto_unregister_shash);
 
+void shash_free_instance(struct crypto_instance *inst)
+{
+	crypto_drop_spawn(crypto_instance_ctx(inst));
+	kfree(shash_instance(inst));
+}
+EXPORT_SYMBOL_GPL(shash_free_instance);
+
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Synchronous cryptographic hash type");