From 0707807bad2106598d5a73e0adec7ae3c3de284f Mon Sep 17 00:00:00 2001
From: Pingfan Liu <piliu@redhat.com>
Date: Tue, 21 May 2019 14:13:28 +0800
Subject: [PATCH] numastat: when reading no-exist pid, return EXIT_FAILURE

This ease the result query by $?

Signed-off-by: Pingfan Liu <piliu@redhat.com>
---
 numastat.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/numastat.c b/numastat.c
index 263bddf..f1a3cc1 100644
--- a/numastat.c
+++ b/numastat.c
@@ -956,6 +956,8 @@ void show_process_info() {
 		if (!fs) {
 			sprintf(buf, "Can't read /proc/%d/numa_maps", pid);
 			perror(buf);
+			if (num_pids == 1)
+				exit(EXIT_FAILURE);
 			continue;
 		}
 		// Add up sub-category memory used from each node.  Must go line by line
@@ -1023,6 +1025,7 @@ void show_process_info() {
 		if (ferror(fs)) {
 			sprintf(buf, "Can't read /proc/%d/numa_maps", pid);
 			perror(buf);
+			exit(EXIT_FAILURE);
 		}
 		fclose(fs);
 		// If showing individual tables, or we just added the last total line,
-- 
2.7.5