netdev - [PATCH net-next] crypto: algif - fix warn: unsigned 'used' is never less than zero

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Message-ID: <20150325142919.4229.90027.stgit@tstruk-mobl1>
Date:	Wed, 25 Mar 2015 07:29:19 -0700
From:	Tadeusz Struk <tadeusz.struk@...el.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org, linux-crypto@...r.kernel.org,
	herbert@...dor.apana.org.au
Subject: [PATCH net-next] crypto: algif - fix warn: unsigned 'used' is never
 less than zero

Change type from unsigned long to int to fix an issue reported by kbuild robot:
crypto/algif_skcipher.c:596 skcipher_recvmsg_async() warn: unsigned 'used' is
never less than zero.

Signed-off-by: Tadeusz Struk <tadeusz.struk@...el.com>
---
 crypto/algif_skcipher.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index 8276f21..60496d4 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -537,7 +537,7 @@ static int skcipher_recvmsg_async(struct socket *sock, struct msghdr *msg,
 
 	while (iov_iter_count(&msg->msg_iter)) {
 		struct skcipher_async_rsgl *rsgl;
-		unsigned long used;
+		int used;
 
 		if (!ctx->used) {
 			err = skcipher_wait_for_data(sk, flags);

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