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Message-ID: <20240229163011.16248-4-lhenriques@suse.de>
Date: Thu, 29 Feb 2024 16:30:10 +0000
From: Luis Henriques <lhenriques@...e.de>
To: Theodore Ts'o <tytso@....edu>,
Andreas Dilger <adilger.kernel@...ger.ca>,
Alexander Viro <viro@...iv.linux.org.uk>,
Christian Brauner <brauner@...nel.org>,
Jan Kara <jack@...e.cz>,
Miklos Szeredi <miklos@...redi.hu>,
Amir Goldstein <amir73il@...il.com>
Cc: linux-ext4@...r.kernel.org,
linux-fsdevel@...r.kernel.org,
linux-unionfs@...r.kernel.org,
linux-kernel@...r.kernel.org,
Luis Henriques <lhenriques@...e.de>
Subject: [PATCH 3/3] overlay: fix mount parameters check for empty values
Now that parameters that have the flag 'fs_param_can_be_empty' set and
their value is NULL are handled as 'flag' type, we need to properly check
for empty (NULL) values.
Signed-off-by: Luis Henriques <lhenriques@...e.de>
---
fs/overlayfs/params.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/overlayfs/params.c b/fs/overlayfs/params.c
index 112b4b12f825..09428af6abc5 100644
--- a/fs/overlayfs/params.c
+++ b/fs/overlayfs/params.c
@@ -441,7 +441,7 @@ static int ovl_parse_param_lowerdir(const char *name, struct fs_context *fc)
/* drop all existing lower layers */
ovl_reset_lowerdirs(ctx);
- if (!*name)
+ if (!name)
return 0;
if (*name == ':') {
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