[PATCH v3] tty: serial: ma35d1: Add a NULL check for of_node

[Greg KH]

On Tue, Jun 25, 2024 at 03:29:19AM +0000, Jacky Huang wrote:
> From: Jacky Huang <ychuang3 at nuvoton.com>
> 
> The pdev->dev.of_node can be NULL if the "serial" node is absent.
> Add a NULL check to return an error in such cases.
> 
> v3:
>     - Added "Reported-by:" line.
> v2:
>     - Added "Fixes" line.

As per the kernel documentation, these "v3:" information goes below the
--- line.

Please fix up and send a v4.

thanks,

greg k-h