linux-kernel - [PATCH 08/18] fsmount: pass up error code from dentry

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Message-Id: <20180708210154.10423-9-ebiggers3@gmail.com>
Date:   Sun,  8 Jul 2018 14:01:44 -0700
From:   Eric Biggers <ebiggers3@...il.com>
To:     David Howells <dhowells@...hat.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        linux-fsdevel@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Eric Biggers <ebiggers@...gle.com>
Subject: [PATCH 08/18] fsmount: pass up error code from dentry_open()

From: Eric Biggers <ebiggers@...gle.com>

Fixes: 0c65353ab9f5 ("vfs: Implement fsmount() to effect a pre-configured mount")
Signed-off-by: Eric Biggers <ebiggers@...gle.com>
---
 fs/namespace.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index 6f0701a03a2b3..9cde133d0a9c4 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -3333,8 +3333,10 @@ SYSCALL_DEFINE3(fsmount, int, fs_fd, unsigned int, flags, unsigned int, ms_flags
 	 * it, not just simply put it.
 	 */
 	file = dentry_open(&newmount, O_PATH, fc->cred);
-	if (IS_ERR(file))
+	if (IS_ERR(file)) {
+		ret = PTR_ERR(file);
 		goto err_path;
+	}
 	file->f_mode |= FMODE_NEED_UNMOUNT;
 
 	ret = get_unused_fd_flags(flags & FSMOUNT_CLOEXEC);
-- 
2.18.0