[PATCH v3] ubifs: silence error output if MS_SILENT is set

[Daniel Golle <daniel@makrotopia.org>]

This change completes
commit 90bea5a3f0bf680b87b90516f3c231997f4b8f3b
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>
---
v2: logic was accidentally inverted, fix that.
v3: add patch description

 fs/ubifs/super.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 7034995..736dd58 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -2108,8 +2108,9 @@ static struct dentry *ubifs_mount(struct file_system_type *fs_type, int flags,
 	 */
 	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);
 	}
 
-- 
2.8.3