[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>
diff --git a/crypto/hmac.c b/crypto/hmac.c
index 847df92..da0456b 100644
--- a/crypto/hmac.c
+++ b/crypto/hmac.c
@@ -49,8 +49,7 @@
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)