[PATCH 2/2] clk: renesas: Avoid mixing error pointers and NULL

From: Dan Carpenter
Date: Thu Jun 17 2021 - 10:15:31 EST


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(-)

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