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authorIngo Molnar2013-12-16 14:51:32 +0100
committerIngo Molnar2013-12-16 14:51:32 +0100
commitfe361cfcf40ad4612226347573a8669cd0d44799 (patch)
treee874ef5a29c3bfe3dd67dc2d8962562c00fc8e3a /net/appletalk/ddp.c
parentperf: Optimize ring-buffer write by depending on control dependencies (diff)
parentLinux 3.13-rc4 (diff)
downloadkernel-qcow2-linux-fe361cfcf40ad4612226347573a8669cd0d44799.tar.gz
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Merge tag 'v3.13-rc4' into perf/core
Merge Linux 3.13-rc4, to refresh this branch with the latest fixes. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/appletalk/ddp.c')
-rw-r--r--net/appletalk/ddp.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 7fee50d637f9..7d424ac6e760 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1735,7 +1735,6 @@ static int atalk_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr
size_t size, int flags)
{
struct sock *sk = sock->sk;
- struct sockaddr_at *sat = (struct sockaddr_at *)msg->msg_name;
struct ddpehdr *ddp;
int copied = 0;
int offset = 0;
@@ -1764,14 +1763,13 @@ static int atalk_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr
}
err = skb_copy_datagram_iovec(skb, offset, msg->msg_iov, copied);
- if (!err) {
- if (sat) {
- sat->sat_family = AF_APPLETALK;
- sat->sat_port = ddp->deh_sport;
- sat->sat_addr.s_node = ddp->deh_snode;
- sat->sat_addr.s_net = ddp->deh_snet;
- }
- msg->msg_namelen = sizeof(*sat);
+ if (!err && msg->msg_name) {
+ struct sockaddr_at *sat = msg->msg_name;
+ sat->sat_family = AF_APPLETALK;
+ sat->sat_port = ddp->deh_sport;
+ sat->sat_addr.s_node = ddp->deh_snode;
+ sat->sat_addr.s_net = ddp->deh_snet;
+ msg->msg_namelen = sizeof(*sat);
}
skb_free_datagram(sk, skb); /* Free the datagram. */