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xtensa: fix syscall_set_return_value
author
Max Filippov
<jcmvbkbc@gmail.com>
Thu, 14 Nov 2019 23:05:40 +0000
(15:05 -0800)
committer
Max Filippov
<jcmvbkbc@gmail.com>
Tue, 26 Nov 2019 20:01:45 +0000
(12:01 -0800)
syscall return value is in the register a2, not a0.
Cc: stable@vger.kernel.org # v5.0+
Fixes:
9f24f3c1067c
("xtensa: implement tracehook functions and enable HAVE_ARCH_TRACEHOOK")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
arch/xtensa/include/asm/syscall.h
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diff --git
a/arch/xtensa/include/asm/syscall.h
b/arch/xtensa/include/asm/syscall.h
index
359ab40
..
c90fb94
100644
(file)
--- a/
arch/xtensa/include/asm/syscall.h
+++ b/
arch/xtensa/include/asm/syscall.h
@@
-51,7
+51,7
@@
static inline void syscall_set_return_value(struct task_struct *task,
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