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authorSiddh Raman Pant <code@siddh.me>2023-12-19 23:19:44 +0530
committerDavid S. Miller <davem@davemloft.net>2023-12-25 07:29:04 +0000
commit6ec0d7527c4287369b52df3bcefd21a0c4fb2b7c (patch)
treebdfad21073d51b74221e8666bc7c285bf6a9c2f7 /net/nfc
parentc95f919567d6f1914f13350af61a1b044ac85014 (diff)
nfc: Do not send datagram if socket state isn't LLCP_BOUND
As we know we cannot send the datagram (state can be set to LLCP_CLOSED by nfc_llcp_socket_release()), there is no need to proceed further. Thus, bail out early from llcp_sock_sendmsg(). Signed-off-by: Siddh Raman Pant <code@siddh.me> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Suman Ghosh <sumang@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/nfc')
-rw-r--r--net/nfc/llcp_sock.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index 645677f84dba..819157bbb5a2 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -796,6 +796,11 @@ static int llcp_sock_sendmsg(struct socket *sock, struct msghdr *msg,
}
if (sk->sk_type == SOCK_DGRAM) {
+ if (sk->sk_state != LLCP_BOUND) {
+ release_sock(sk);
+ return -ENOTCONN;
+ }
+
DECLARE_SOCKADDR(struct sockaddr_nfc_llcp *, addr,
msg->msg_name);