[CRYPTO] Don't check for NULL before kfree()

Checking a pointer for NULL before calling kfree() on it is redundant.
This patch removes such checks from crypto/

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 2 insertions, 4 deletions

diff --git a/crypto/cipher.c b/crypto/cipher.c
index f434ce7c2d0b..69264497b48c 100644
--- a/crypto/cipher.c
+++ b/crypto/cipher.c
@@ -336,6 +336,5 @@ out:
 
 void crypto_exit_cipher_ops(struct crypto_tfm *tfm)
 {
-        if (tfm->crt_cipher.cit_iv)
-                kfree(tfm->crt_cipher.cit_iv);
+        kfree(tfm->crt_cipher.cit_iv);
 }
diff --git a/crypto/hmac.c b/crypto/hmac.c
index 847df9263e16..da0456b37109 100644
--- a/crypto/hmac.c
+++ b/crypto/hmac.c
@@ -49,8 +49,7 @@ int crypto_alloc_hmac_block(struct crypto_tfm *tfm)
 
 void crypto_free_hmac_block(struct crypto_tfm *tfm)
 {
-        if (tfm->crt_digest.dit_hmac_block)
-                kfree(tfm->crt_digest.dit_hmac_block);
+        kfree(tfm->crt_digest.dit_hmac_block);
 }
 
 void crypto_hmac_init(struct crypto_tfm *tfm, u8 *key, unsigned int *keylen)