linux-kernel - [PATCH 5.4 024/168] cifs: return proper error code in statfs(2)

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Message-Id: <20210315135551.146114421@linuxfoundation.org>
Date:   Mon, 15 Mar 2021 14:54:16 +0100
From:   gregkh@...uxfoundation.org
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, "Paulo Alcantara (SUSE)" <pc@....nz>,
        Aurelien Aptel <aaptel@...e.com>,
        Ronnie Sahlberg <lsahlber@...hat.com>,
        Steve French <stfrench@...rosoft.com>
Subject: [PATCH 5.4 024/168] cifs: return proper error code in statfs(2)

From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

From: Paulo Alcantara <pc@....nz>

commit 14302ee3301b3a77b331cc14efb95bf7184c73cc upstream.

In cifs_statfs(), if server->ops->queryfs is not NULL, then we should
use its return value rather than always returning 0.  Instead, use rc
variable as it is properly set to 0 in case there is no
server->ops->queryfs.

Signed-off-by: Paulo Alcantara (SUSE) <pc@....nz>
Reviewed-by: Aurelien Aptel <aaptel@...e.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@...hat.com>
CC: <stable@...r.kernel.org>
Signed-off-by: Steve French <stfrench@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 fs/cifs/cifsfs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -278,7 +278,7 @@ cifs_statfs(struct dentry *dentry, struc
 		rc = server->ops->queryfs(xid, tcon, buf);
 
 	free_xid(xid);
-	return 0;
+	return rc;
 }
 
 static long cifs_fallocate(struct file *file, int mode, loff_t off, loff_t len)