linux-kernel - [PATCH] seccomp: Add missing return in non-void function

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Date:   Mon, 11 Jan 2021 17:28:39 +0000
From:   Paul Cercueil <paul@...pouillou.net>
To:     Kees Cook <keescook@...omium.org>,
        Andy Lutomirski <luto@...capital.net>,
        Will Drewry <wad@...omium.org>
Cc:     linux-kernel@...r.kernel.org, Paul Cercueil <paul@...pouillou.net>,
        stable@...r.kernel.org
Subject: [PATCH] seccomp: Add missing return in non-void function

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@...r.kernel.org # 4.7+
Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---
 kernel/seccomp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index 952dc1c90229..63b40d12896b 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -1284,6 +1284,8 @@ static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd,
 			    const bool recheck_after_trace)
 {
 	BUG();
+
+	return -1;
 }
 #endif
 
-- 
2.29.2