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-rw-r--r--crypto/shash.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/crypto/shash.c b/crypto/shash.c
index 50d69a4..c9df367 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -55,6 +55,9 @@ int crypto_shash_setkey(struct crypto_shash *tfm, const u8 *key,
struct shash_alg *shash = crypto_shash_alg(tfm);
unsigned long alignmask = crypto_shash_alignmask(tfm);
+ if (!shash->setkey)
+ return -ENOSYS;
+
if ((unsigned long)key & alignmask)
return shash_setkey_unaligned(tfm, key, keylen);
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