can: avoids a false warning
At this point optlen == sizeof(sfilter) but some compilers are dumb.
Reported-by: Németh Márton <nm127@freemail.h
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/can/raw.c b/net/can/raw.c
index 3a7dffb..da99cf1 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -445,7 +445,7 @@
return -EFAULT;
}
} else if (count == 1) {
- if (copy_from_user(&sfilter, optval, optlen))
+ if (copy_from_user(&sfilter, optval, sizeof(sfilter)))
return -EFAULT;
}