net: ppp: use {get,put}_unaligned_be{16,32}

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Reviewed-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/ppp_synctty.c b/drivers/net/ppp_synctty.c
index 4c95ec3fb8d4..4e6b72f57de8 100644
--- a/drivers/net/ppp_synctty.c
+++ b/drivers/net/ppp_synctty.c
@@ -45,6 +45,7 @@
 #include <linux/completion.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <asm/unaligned.h>
 #include <asm/uaccess.h>
 
 #define PPP_VERSION     "2.4.2"
@@ -563,7 +564,7 @@ ppp_sync_txmunge(struct syncppp *ap, struct sk_buff *skb)
         int islcp;
 
         data  = skb->data;
-        proto = (data[0] << 8) + data[1];
+        proto = get_unaligned_be16(data);
 
         /* LCP packets with codes between 1 (configure-request)
          * and 7 (code-reject) must be sent as though no options