From: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
To: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>,
linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>,
Rich Felker <dalias@libc.org>
Subject: Re: [PATCH 4/4] sh: bring syscall_set_return_value in line with other architectures
Date: Wed, 22 Jul 2020 23:20:35 +0000 [thread overview]
Message-ID: <bfb5f986-1d49-15e4-d1e5-74408e779ffd@physik.fu-berlin.de> (raw)
In-Reply-To: <20200722231322.419642-4-kernel@mkarcher.dialup.fu-berlin.de>
On 7/23/20 1:13 AM, Michael Karcher wrote:
> Other architectures expect that syscall_set_return_value gets an already
> negative value as error. That's also what kernel/seccomp.c provides.
>
> Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
> ---
> arch/sh/include/asm/syscall_32.h | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/arch/sh/include/asm/syscall_32.h b/arch/sh/include/asm/syscall_32.h
> index 0b5b8e75edac..cb51a7528384 100644
> --- a/arch/sh/include/asm/syscall_32.h
> +++ b/arch/sh/include/asm/syscall_32.h
> @@ -40,10 +40,7 @@ static inline void syscall_set_return_value(struct task_struct *task,
> struct pt_regs *regs,
> int error, long val)
> {
> - if (error)
> - regs->regs[0] = -error;
> - else
> - regs->regs[0] = val;
> + regs->regs[0] = (long) error ?: val;
> }
>
> static inline void syscall_get_arguments(struct task_struct *task,
>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
next prev parent reply other threads:[~2020-07-22 23:20 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-22 23:13 [PATCH 1/4] sh: Fix validation of system call number Michael Karcher
2020-07-22 23:13 ` [PATCH 2/4] sh: Rearrange blocks in entry-common.S Michael Karcher
2020-07-22 23:20 ` John Paul Adrian Glaubitz
2020-07-22 23:13 ` [PATCH 3/4] sh: Add SECCOMP_FILTER Michael Karcher
2020-07-22 23:20 ` John Paul Adrian Glaubitz
2020-08-28 15:50 ` Rich Felker
2020-08-28 16:21 ` John Paul Adrian Glaubitz
2020-08-28 16:30 ` Rich Felker
2020-08-28 16:38 ` John Paul Adrian Glaubitz
2020-08-28 17:03 ` Rich Felker
2020-08-29 0:49 ` Rich Felker
2020-08-29 11:09 ` John Paul Adrian Glaubitz
2020-09-03 3:56 ` Rich Felker
2020-09-03 5:46 ` Rich Felker
2020-09-03 6:04 ` John Paul Adrian Glaubitz
2020-09-03 6:17 ` Rich Felker
2020-09-03 6:03 ` John Paul Adrian Glaubitz
2020-07-22 23:13 ` [PATCH 4/4] sh: bring syscall_set_return_value in line with other architectures Michael Karcher
2020-07-22 23:20 ` John Paul Adrian Glaubitz [this message]
2020-07-22 23:19 ` [PATCH 1/4] sh: Fix validation of system call number John Paul Adrian Glaubitz
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