linux-kernel - [PATCH] kernel: Optimize unused integer return values

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Date:   Wed, 27 Apr 2022 15:34:48 +0800
From:   Li kunyu <kunyu@...china.com>
To:     ebiederm@...ssion.com, keescook@...omium.org, tglx@...utronix.de,
        elver@...gle.com
Cc:     oleg@...hat.com, legion@...nel.org, linux-kernel@...r.kernel.org,
        Li kunyu <kunyu@...china.com>
Subject: [PATCH] kernel: Optimize unused integer return values

Optimize unused integer return values

Signed-off-by: Li kunyu <kunyu@...china.com>
---
 kernel/signal.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/kernel/signal.c b/kernel/signal.c
index 30cd1ca43bcd..ae58a966c8de 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -3464,7 +3464,7 @@ int __copy_siginfo_to_user32(struct compat_siginfo __user *to,
 	return 0;
 }
 
-static int post_copy_siginfo_from_user32(kernel_siginfo_t *to,
+static void post_copy_siginfo_from_user32(kernel_siginfo_t *to,
 					 const struct compat_siginfo *from)
 {
 	clear_siginfo(to);
@@ -3548,7 +3548,8 @@ static int __copy_siginfo_from_user32(int signo, struct kernel_siginfo *to,
 		return -EFAULT;
 
 	from.si_signo = signo;
-	return post_copy_siginfo_from_user32(to, &from);
+	post_copy_siginfo_from_user32(to, &from);
+	return 0;
 }
 
 int copy_siginfo_from_user32(struct kernel_siginfo *to,
@@ -3559,7 +3560,8 @@ int copy_siginfo_from_user32(struct kernel_siginfo *to,
 	if (copy_from_user(&from, ufrom, sizeof(struct compat_siginfo)))
 		return -EFAULT;
 
-	return post_copy_siginfo_from_user32(to, &from);
+	post_copy_siginfo_from_user32(to, &from);
+	return 0;
 }
 #endif /* CONFIG_COMPAT */
 
-- 
2.18.2