From 402b4e5b445470a6e921022f860a59746f7e1460 Mon Sep 17 00:00:00 2001
From: fanyong <fanyong>
Date: Tue, 20 May 2008 02:05:15 +0000
Subject: [PATCH 1/1] Branch b1_6 b=15828 i=adilger i=umka

return "-EIO" when write to read only proc interface which "write_proc" is NULL.
---
 lustre/obdclass/lprocfs_status.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lustre/obdclass/lprocfs_status.c b/lustre/obdclass/lprocfs_status.c
index bd26294..9615614 100644
--- a/lustre/obdclass/lprocfs_status.c
+++ b/lustre/obdclass/lprocfs_status.c
@@ -172,7 +172,7 @@ out:
 static ssize_t lprocfs_fops_write(struct file *f, const char __user *buf, size_t size, loff_t *ppos)
 {
         struct proc_dir_entry *dp = PDE(f->f_dentry->d_inode);
-        int rc = 0;
+        int rc = -EIO;
 
         LPROCFS_ENTRY();
         if (!dp->deleted && dp->write_proc)
-- 
1.8.3.1