From: WANG Cong <xiyou.wangcong@gmail.com>
Date: Tue, 17 May 2016 21:05:49 +0000 (-0700)
Subject: kcm: fix a signedness in kcm_splice_read()
X-Git-Tag: MMI-PSA29.97-13-9~7876^2~31
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f1971a2e0393a86464caa77aa52168b731960dfa;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

kcm: fix a signedness in kcm_splice_read()

skb_splice_bits() returns int, kcm_splice_read() returns ssize_t,
both are signed.

We may need another patch to make them all ssize_t, but that
deserves a separated patch.

Fixes: 91687355b927 ("kcm: Splice support")
Reported-by: David Binderman <linuxdev.baldrick@gmail.com>
Cc: Tom Herbert <tom@herbertland.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index 40662d73204f..0b68ba730a06 100644
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -1483,7 +1483,7 @@ static ssize_t kcm_splice_read(struct socket *sock, loff_t *ppos,
 	long timeo;
 	struct kcm_rx_msg *rxm;
 	int err = 0;
-	size_t copied;
+	ssize_t copied;
 	struct sk_buff *skb;
 
 	/* Only support splice for SOCKSEQPACKET */