Use coma at the the last elements of structure initializer.
Daniel Stone's explanation:
Because it turns:
-   .attr   = foo
+   .attr   = foo,
+   .bar    = baz
into:
+   .bar    = baz,
i.e., far less likely to screw up a merge.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
 struct file_operations ubi_cdev_operations = {
        .owner = THIS_MODULE,
        .ioctl = ubi_cdev_ioctl,
-       .llseek = no_llseek
+       .llseek = no_llseek,
 };
 
 /* UBI volume character device operations */
        .llseek  = vol_cdev_llseek,
        .read    = vol_cdev_read,
        .write   = vol_cdev_write,
-       .ioctl   = vol_cdev_ioctl
+       .ioctl   = vol_cdev_ioctl,
 };