diff mbox series

[-next,2/2] clk: renesas: fix return value and unused assignment

Message ID 1623749970-38020-2-git-send-email-yang.lee@linux.alibaba.com (mailing list archive)
State Superseded
Delegated to: Geert Uytterhoeven
Headers show
Series [-next,1/2] clk: renesas: Remove unneeded semicolon | expand

Commit Message

Yang Li June 15, 2021, 9:39 a.m. UTC 
Currently the function returns NULL on error, so exact error code is lost.
This patch changes return convention of the function to use ERR_PTR()
on error instead.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
---
 drivers/clk/renesas/renesas-rzg2l-cpg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Geert Uytterhoeven June 16, 2021, 11:57 a.m. UTC | #1 
Hi Yang,

On Tue, Jun 15, 2021 at 11:39 AM Yang Li <yang.lee@linux.alibaba.com> wrote:
> Currently the function returns NULL on error, so exact error code is lost.
> This patch changes return convention of the function to use ERR_PTR()
> on error instead.
>
> Reported-by: Abaci Robot <abaci@linux.alibaba.com>
> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
> ---
>  drivers/clk/renesas/renesas-rzg2l-cpg.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/clk/renesas/renesas-rzg2l-cpg.c b/drivers/clk/renesas/renesas-rzg2l-cpg.c
> index 1fcea17..5bc7e87 100644
> --- a/drivers/clk/renesas/renesas-rzg2l-cpg.c
> +++ b/drivers/clk/renesas/renesas-rzg2l-cpg.c
> @@ -183,7 +183,7 @@ static unsigned long rzg2l_cpg_pll_clk_recalc_rate(struct clk_hw *hw,
>         pll_clk = devm_kzalloc(dev, sizeof(*pll_clk), GFP_KERNEL);
>         if (!pll_clk) {
>                 clk = ERR_PTR(-ENOMEM);
> -               return NULL;
> +               return clk;
>         }

Why not simply "return ERR_PTR(-ENOMEM);"?

Gr{oetje,eeting}s,

                        Geert
diff mbox series

Patch

diff --git a/drivers/clk/renesas/renesas-rzg2l-cpg.c b/drivers/clk/renesas/renesas-rzg2l-cpg.c
index 1fcea17..5bc7e87 100644
--- a/drivers/clk/renesas/renesas-rzg2l-cpg.c
+++ b/drivers/clk/renesas/renesas-rzg2l-cpg.c
@@ -183,7 +183,7 @@  static unsigned long rzg2l_cpg_pll_clk_recalc_rate(struct clk_hw *hw,
 	pll_clk = devm_kzalloc(dev, sizeof(*pll_clk), GFP_KERNEL);
 	if (!pll_clk) {
 		clk = ERR_PTR(-ENOMEM);
-		return NULL;
+		return clk;
 	}
 
 	parent_name = __clk_get_name(parent);