[PATCH 3/3] clk: xilinx: vcu: unregister pll_post only if registered correctly

[Stephen Boyd]

Quoting Rohit Visavalia (2024-12-26 04:20:23)
> If registration of pll_post is failed, it will be set to NULL or ERR,
> unregistering same will fail with following call trace:
> 
> Unable to handle kernel NULL pointer dereference at virtual address 008
> pc : clk_hw_unregister+0xc/0x20
> lr : clk_hw_unregister_fixed_factor+0x18/0x30
> sp : ffff800011923850
> ...
> Call trace:
>  clk_hw_unregister+0xc/0x20
>  clk_hw_unregister_fixed_factor+0x18/0x30
>  xvcu_unregister_clock_provider+0xcc/0xf4 [xlnx_vcu]
>  xvcu_probe+0x2bc/0x53c [xlnx_vcu]
> 
> Signed-off-by: Rohit Visavalia <rohit.visavalia at amd.com>

Please add a Fixes tag, and put fixes earlier in the series so they can
be applied while other patches go through review.