openwrtv4/target/linux/generic/pending-4.4/046-ubifs-silence-error-output-if-MS_SILENT-is-set.patch

From 1ae92642e5900316011736072b4fa91710840620 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Sat, 18 Jun 2016 17:53:45 +0200
Subject: [PATCH] ubifs: Silence error output if MS_SILENT is set

This change completes commit
90bea5a3f0 ("UBIFS: respect MS_SILENT mount flag")
which already implements support for MS_SILENT except for that one
error message which is still being displayed despite MS_SILENT being
set. Suppress that error message as well in case MS_SILENT is set.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
[rw: massaged commit message]
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 fs/ubifs/super.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -2107,8 +2107,9 @@ static struct dentry *ubifs_mount(struct
 	 */
 	ubi = open_ubi(name, UBI_READONLY);
 	if (IS_ERR(ubi)) {
-		pr_err("UBIFS error (pid: %d): cannot open \"%s\", error %d",
-		       current->pid, name, (int)PTR_ERR(ubi));
+		if (!(flags & MS_SILENT))
+			pr_err("UBIFS error (pid: %d): cannot open \"%s\", error %d",
+			       current->pid, name, (int)PTR_ERR(ubi));
 		return ERR_CAST(ubi);
 	}