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Message-Id: <20191219183100.383232228@linuxfoundation.org>
Date: Thu, 19 Dec 2019 19:34:12 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Max Filippov <jcmvbkbc@...il.com>
Subject: [PATCH 5.4 20/80] xtensa: fix syscall_set_return_value
From: Max Filippov <jcmvbkbc@...il.com>
commit c2d9aa3b6e56de56c7f1ed9026ca6ec7cfbeef19 upstream.
syscall return value is in the register a2, not a0.
Cc: stable@...r.kernel.org # v5.0+
Fixes: 9f24f3c1067c ("xtensa: implement tracehook functions and enable HAVE_ARCH_TRACEHOOK")
Signed-off-by: Max Filippov <jcmvbkbc@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
arch/xtensa/include/asm/syscall.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/xtensa/include/asm/syscall.h
+++ b/arch/xtensa/include/asm/syscall.h
@@ -51,7 +51,7 @@ static inline void syscall_set_return_va
struct pt_regs *regs,
int error, long val)
{
- regs->areg[0] = (long) error ? error : val;
+ regs->areg[2] = (long) error ? error : val;
}
#define SYSCALL_MAX_ARGS 6
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