diff options
Diffstat (limited to 'arch/powerpc/include/asm/syscall.h')
| -rw-r--r-- | arch/powerpc/include/asm/syscall.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h index a048fed0722f..38d62acfdce7 100644 --- a/arch/powerpc/include/asm/syscall.h +++ b/arch/powerpc/include/asm/syscall.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Access to user system call parameters and results * * Copyright (C) 2008 Red Hat, Inc. All rights reserved. * - * This copyrighted material is made available to anyone wishing to use, - * modify, copy, or redistribute it subject to the terms and conditions - * of the GNU General Public License v.2. - * * See asm-generic/syscall.h for descriptions of what we must do here. */ @@ -38,6 +35,16 @@ static inline void syscall_rollback(struct task_struct *task, regs->gpr[3] = regs->orig_gpr3; } +static inline long syscall_get_error(struct task_struct *task, + struct pt_regs *regs) +{ + /* + * If the system call failed, + * regs->gpr[3] contains a positive ERRORCODE. + */ + return (regs->ccr & 0x10000000UL) ? -regs->gpr[3] : 0; +} + static inline long syscall_get_return_value(struct task_struct *task, struct pt_regs *regs) { |