From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753224AbeC2Llv (ORCPT ); Thu, 29 Mar 2018 07:41:51 -0400 Received: from isilmar-4.linta.de ([136.243.71.142]:59716 "EHLO isilmar-4.linta.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752865AbeC2L0U (ORCPT ); Thu, 29 Mar 2018 07:26:20 -0400 From: Dominik Brodowski To: linux-kernel@vger.kernel.org Cc: viro@ZenIV.linux.org.uk, torvalds@linux-foundation.org, arnd@arndb.de, linux-arch@vger.kernel.org, Andi Kleen , Ingo Molnar , Jiri Slaby , x86@kernel.org, Michael Tautschnig Subject: [PATCH 100/109] x86: fix sys_sigreturn() return type to be long, not unsigned long Date: Thu, 29 Mar 2018 13:24:17 +0200 Message-Id: <20180329112426.23043-101-linux@dominikbrodowski.net> X-Mailer: git-send-email 2.16.3 In-Reply-To: <20180329112426.23043-1-linux@dominikbrodowski.net> References: <20180329112426.23043-1-linux@dominikbrodowski.net> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Same as with other system calls, sys_sigreturn() should return a value of type long, not unsigned long. This also matches the behaviour for IA32_EMULATION, see sys32_sigreturn() in arch/x86/ia32/ia32_signal.c . Cc: Andi Kleen Cc: Ingo Molnar Cc: Jiri Slaby Cc: x86@kernel.org Cc: Michael Tautschnig Reviewed-by: Thomas Gleixner Signed-off-by: Dominik Brodowski --- arch/x86/include/asm/syscalls.h | 2 +- arch/x86/kernel/signal.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h index 1c0bebbd039e..ae6e05fdc24b 100644 --- a/arch/x86/include/asm/syscalls.h +++ b/arch/x86/include/asm/syscalls.h @@ -35,7 +35,7 @@ asmlinkage long sys_get_thread_area(struct user_desc __user *); #ifdef CONFIG_X86_32 /* kernel/signal.c */ -asmlinkage unsigned long sys_sigreturn(void); +asmlinkage long sys_sigreturn(void); /* kernel/vm86_32.c */ struct vm86_struct; diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 4cdc0b27ec82..83a26726b689 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -601,7 +601,7 @@ static int x32_setup_rt_frame(struct ksignal *ksig, * Do a signal return; undo the signal stack. */ #ifdef CONFIG_X86_32 -asmlinkage unsigned long sys_sigreturn(void) +asmlinkage long sys_sigreturn(void) { struct pt_regs *regs = current_pt_regs(); struct sigframe __user *frame; -- 2.16.3