[PATCH 5.11 654/775] seccomp: Add missing return in non-void function

[Greg Kroah-Hartman]

From: Paul Cercueil <paul@xxxxxxxxxxxxxxx>

commit 04b38d012556199ba4c31195940160e0c44c64f0 upstream.

We don't actually care about the value, since the kernel will panic
before that; but a value should nonetheless be returned, otherwise the
compiler will complain.

Fixes: 8112c4f140fa ("seccomp: remove 2-phase API")
Cc: stable@xxxxxxxxxxxxxxx # 4.7+
Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210111172839.640914-1-paul@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 kernel/seccomp.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -1284,6 +1284,8 @@ static int __seccomp_filter(int this_sys
 			    const bool recheck_after_trace)
 {
 	BUG();
+
+	return -1;
 }
 #endif