crypto: algif_aead - fix uninitialized variable warning

In case the user provided insufficient data, the code may return
prematurely without any operation. In this case, the processed
data indicated with outlen is zero.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c
index 2fbf239bb1f2a7b22a6d9cc15b89a903d4184c8f..e9c0993b131dc34d435d29358a037f56ca62e2b8 100644 (file)
--- a/crypto/algif_aead.c
+++ b/crypto/algif_aead.c
@@ -420,7 +420,7 @@ static int aead_recvmsg_async(struct socket *sock, struct msghdr *msg,
        unsigned int i, reqlen = GET_REQ_SIZE(tfm);
        int err = -ENOMEM;
        unsigned long used;
-       size_t outlen;
+       size_t outlen = 0;
        size_t usedpages = 0;
 
        lock_sock(sk);