NFC: llcp: Socket miux is a big endian field

The MIUX must be transmitted in big endian and as such we have to convert
it properly.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c
index 6fa76704cb13..873c837e5c97 100644
--- a/net/nfc/llcp/sock.c
+++ b/net/nfc/llcp/sock.c
@@ -279,7 +279,7 @@ static int nfc_llcp_setsockopt(struct socket *sock, int level, int optname,
                         break;
                 }
 
-                llcp_sock->miux = (u16) opt;
+                llcp_sock->miux = cpu_to_be16((u16) opt);
 
                 break;
 
@@ -323,7 +323,8 @@ static int nfc_llcp_getsockopt(struct socket *sock, int level, int optname,
                 break;
 
         case NFC_LLCP_MIUX:
-                if (put_user(llcp_sock->miux, (u32 __user *) optval))
+                if (put_user(be16_to_cpu(llcp_sock->miux),
+                             (u32 __user *) optval))
                         err = -EFAULT;
 
                 break;
@@ -921,7 +922,7 @@ struct sock *nfc_llcp_sock_alloc(struct socket *sock, int type, gfp_t gfp)
         llcp_sock->ssap = 0;
         llcp_sock->dsap = LLCP_SAP_SDP;
         llcp_sock->rw = LLCP_MAX_RW + 1;
-        llcp_sock->miux = LLCP_MAX_MIUX + 1;
+        llcp_sock->miux = cpu_to_be16(LLCP_MAX_MIUX + 1);
         llcp_sock->remote_rw = LLCP_DEFAULT_RW;
         llcp_sock->remote_miu = LLCP_DEFAULT_MIU;
         llcp_sock->send_n = llcp_sock->send_ack_n = 0;