X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=net%2Fcan%2Fraw.c;h=201cbfc6b9ece724b3cda9427f27d976534567c7;hb=5dae61b80564a5583ff4b56e357bdbc733fddb76;hp=ead50c7c0d40f54e8b05d7b1c9e04cdef5b92fb2;hpb=f838bad1b3be8ca0c785ee0e0c570dfda74cf377;p=karo-tx-linux.git

diff --git a/net/can/raw.c b/net/can/raw.c
index ead50c7c0d40..201cbfc6b9ec 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -573,7 +573,8 @@ static int raw_getsockopt(struct socket *sock, int level, int optname,
 			int fsize = ro->count * sizeof(struct can_filter);
 			if (len > fsize)
 				len = fsize;
-			err = copy_to_user(optval, ro->filter, len);
+			if (copy_to_user(optval, ro->filter, len))
+				err = -EFAULT;
 		} else
 			len = 0;
 		release_sock(sk);