[Skiboot] [PATCH] flash: Handle nullptr dereference of system_flash

[Reza Arbab]

On Fri, Mar 07, 2025 at 11:01:02AM +0530, Aditya Gupta wrote:
>Add null check to ignore the unregister request if system_flash is not 
>set.

Applied to master.

-- 
Reza Arbab