net: rework recvmsg handler msg_name and msg_namelen logic

[linux-drm-fsl-dcu.git] / net / compat.c

diff --git a/net/compat.c b/net/compat.c
index 89032580bd1d8aa5ef29d1395661bdd0bcfe95f1..618c6a8a911b65c9a406ba5d7d0e221cb124960e 100644 (file)
--- a/net/compat.c
+++ b/net/compat.c
@@ -93,7 +93,8 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
                        if (err < 0)
                                return err;
                }
-               kern_msg->msg_name = kern_address;
+               if (kern_msg->msg_name)
+                       kern_msg->msg_name = kern_address;
        } else
                kern_msg->msg_name = NULL;