[PATCH][next] soc: xilinx: vcu: remove deadcode on null divider check

Stephen Boyd sboyd at kernel.org
Wed Feb 10 22:28:18 EST 2021


Quoting Colin King (2021-02-10 10:49:38)
> From: Colin Ian King <colin.king at canonical.com>
> 
> The pointer 'divider' has previously been null checked followed by
> a return, hence the subsequent null check is redundant deadcode
> that can be removed.  Clean up the code and remove it.
> 
> Fixes: 9c789deea206 ("soc: xilinx: vcu: implement clock provider for output clocks")
> Signed-off-by: Colin Ian King <colin.king at canonical.com>
> ---
>  drivers/clk/xilinx/xlnx_vcu.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/clk/xilinx/xlnx_vcu.c b/drivers/clk/xilinx/xlnx_vcu.c
> index d66b1315114e..607936d7a413 100644
> --- a/drivers/clk/xilinx/xlnx_vcu.c
> +++ b/drivers/clk/xilinx/xlnx_vcu.c
> @@ -512,9 +512,6 @@ static void xvcu_clk_hw_unregister_leaf(struct clk_hw *hw)
>  
>         mux = clk_hw_get_parent(divider);
>         clk_hw_unregister_mux(mux);
> -       if (!divider)
> -               return;
> -

This code is pretty confusing. Waiting for m.tretter at pengutronix.de to
reply

>         clk_hw_unregister_divider(divider);
>  }
>



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