From e9d81fc5b2014eb17d45ba4940bfb603d57bbcb3 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Sun, 28 Jul 2019 19:11:11 -0500
Subject: [PATCH] ARM: signal: Mark expected switch fall-through
Mark switch cases where we are expecting to fall through.
This patch fixes the following warning:
arch/arm/kernel/signal.c: In function 'do_signal':
arch/arm/kernel/signal.c:598:12: warning: this statement may fall through [-Wimplicit-fallthrough=]
restart -= 2;
~~~~~~~~^~~~
arch/arm/kernel/signal.c:599:3: note: here
case -ERESTARTNOHAND:
^~~~
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
arch/arm/kernel/signal.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 09f6fdd419745..ab2568996ddb0 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -596,6 +596,7 @@ static int do_signal(struct pt_regs *regs, int syscall)
switch (retval) {
case -ERESTART_RESTARTBLOCK:
restart -= 2;
+ /* Fall through */
case -ERESTARTNOHAND:
case -ERESTARTSYS:
case -ERESTARTNOINTR:
--
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