From 2424b1285742806496c17a9eef4c68e7172f717c Mon Sep 17 00:00:00 2001
From: wangjianyu3 <wangjianyu3@xiaomi.com>
Date: Mon, 23 Jun 2025 17:00:07 +0800
Subject: [PATCH] fs/procfs: fix output format of fd info

Refered to PRINTF(3), the [v]snprintf returns the number of characters
printed (excluding the null byte used to end output to strings).

Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
---
 fs/procfs/fs_procfsproc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/procfs/fs_procfsproc.c b/fs/procfs/fs_procfsproc.c
index 94f3035770..cfdebd9d59 100644
--- a/fs/procfs/fs_procfsproc.c
+++ b/fs/procfs/fs_procfsproc.c
@@ -1330,7 +1330,7 @@ static ssize_t proc_groupfd(FAR struct proc_file_s *procfile,
                                        fdp->f_backtrace,
                                        CONFIG_FS_BACKTRACE);
 #endif
-          procfile->line[linesize - 2] = '\n';
+          procfile->line[linesize - 1] = '\n';
         }
 
       file_put(filep);