From 227a3682312212c8848e9e972a1f923c6a8ad531 Mon Sep 17 00:00:00 2001
From: Michael Kerrisk <mtk.manpages@gmail.com>
Date: Thu, 12 Sep 2019 10:47:42 +0200
Subject: [PATCH] ptrace.2: Clarify meaning of ptrace_syscall_info 'is_error'
 field

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
---
 man2/ptrace.2 | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/man2/ptrace.2 b/man2/ptrace.2
index a1b8b6fe8..997a73a8a 100644
--- a/man2/ptrace.2
+++ b/man2/ptrace.2
@@ -1045,7 +1045,8 @@ struct ptrace_syscall_info {
         } entry;
         struct {     /* op == PTRACE_SYSCALL_INFO_EXIT */
             __s64 rval;        /* System call return value */
-            __u8 is_error;     /* System call error flag */
+            __u8 is_error;     /* System call error flag;
+                                  Boolean: is rval != 0? */
         } exit;
         struct {     /* op == PTRACE_SYSCALL_INFO_SECCOMP */
             __u64 nr;          /* System call number */