Hi Dan,
Thank you for the patch.
> -----Original Message-----
> From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> Sent: 17 June 2021 15:15
> To: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>; Prabhakar Mahadev Lad <prabhakar.mahadev-
> lad.rj@xxxxxxxxxxxxxx>
> Cc: Michael Turquette <mturquette@xxxxxxxxxxxx>; Stephen Boyd <sboyd@xxxxxxxxxx>; linux-renesas-
> soc@xxxxxxxxxxxxxxx; linux-clk@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; kernel-
> janitors@xxxxxxxxxxxxxxx
> Subject: [PATCH 2/2] clk: renesas: Avoid mixing error pointers and NULL
>
> These functions accidentally return both error pointers and NULL when there is an error. It doesn't
> cause a problem but it is confusing and seems unintentional.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> ---
> drivers/clk/renesas/renesas-rzg2l-cpg.c | 9 +++------
> 1 file changed, 3 insertions(+), 6 deletions(-)
>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
Cheers,
Prabhakar
> diff --git a/drivers/clk/renesas/renesas-rzg2l-cpg.c b/drivers/clk/renesas/renesas-rzg2l-cpg.c
> index 7ba36f19896f..83b58e1cb78f 100644
> --- a/drivers/clk/renesas/renesas-rzg2l-cpg.c
> +++ b/drivers/clk/renesas/renesas-rzg2l-cpg.c
> @@ -124,7 +124,7 @@ rzg2l_cpg_div_clk_register(const struct cpg_core_clk *core,
> core->flag, &priv->rmw_lock);
>
> if (IS_ERR(clk_hw))
> - return NULL;
> + return ERR_CAST(clk_hw);
>
> return clk_hw->clk;
> }
> @@ -174,17 +174,14 @@ rzg2l_cpg_pll_clk_register(const struct cpg_core_clk *core,
> struct clk_init_data init;
> const char *parent_name;
> struct pll_clk *pll_clk;
> - struct clk *clk;
>
> parent = clks[core->parent & 0xffff];
> if (IS_ERR(parent))
> return ERR_CAST(parent);
>
> pll_clk = devm_kzalloc(dev, sizeof(*pll_clk), GFP_KERNEL);
> - if (!pll_clk) {
> - clk = ERR_PTR(-ENOMEM);
> - return NULL;
> - }
> + if (!pll_clk)
> + return ERR_PTR(-ENOMEM);
>
> parent_name = __clk_get_name(parent);
> init.name = core->name;
> --
> 2.30.2
