eCryptfs: Check return of filemap_write_and_wait during fsync



Error out of ecryptfs_fsync() if filemap_write_and_wait() fails.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Cc: Paul Taysom <taysom@chromium.org>
Cc: Olof Johansson <olofj@chromium.org>
Cc: stable@vger.kernel.org # v3.6+

parent 24a923e4

fs/ecryptfs/file.c

+6 −1

Original line number	Diff line number	Diff line
		@@ -295,7 +295,12 @@ static int ecryptfs_release(struct inode inode, struct file file)
		static int
		ecryptfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
		{
		filemap_write_and_wait(file->f_mapping);
		int rc;

		rc = filemap_write_and_wait(file->f_mapping);
		if (rc)
		return rc;

		return vfs_fsync(ecryptfs_file_to_lower(file), datasync);
		}