Merge tag 'acpi-5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...

[linux-2.6-microblaze.git] / crypto / shash.c

diff --git a/crypto/shash.c b/crypto/shash.c
index 70faf28..c075b26 100644 (file)
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -577,6 +577,9 @@ int shash_register_instance(struct crypto_template *tmpl,
 {
        int err;
 
+       if (WARN_ON(!inst->free))
+               return -EINVAL;
+
        err = shash_prepare_alg(&inst->alg);
        if (err)
                return err;