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Subject[PATCH] clk: max77686: Remove unnecessary NULL checking for container_of()
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container_of() never returns NULL, thus remove the NULL checking for it.
Also rename get_max77686_clk() to to_max77686_clk() for better readability.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
drivers/clk/clk-max77686.c | 30 ++++++++----------------------
1 file changed, 8 insertions(+), 22 deletions(-)

diff --git a/drivers/clk/clk-max77686.c b/drivers/clk/clk-max77686.c
index 8944214..3680f66 100644
--- a/drivers/clk/clk-max77686.c
+++ b/drivers/clk/clk-max77686.c
@@ -44,48 +44,34 @@ struct max77686_clk {
struct clk_lookup *lookup;
};

-static struct max77686_clk *get_max77686_clk(struct clk_hw *hw)
+static struct max77686_clk *to_max77686_clk(struct clk_hw *hw)
{
return container_of(hw, struct max77686_clk, hw);
}

static int max77686_clk_prepare(struct clk_hw *hw)
{
- struct max77686_clk *max77686;
- int ret;
-
- max77686 = get_max77686_clk(hw);
- if (!max77686)
- return -ENOMEM;
-
- ret = regmap_update_bits(max77686->iodev->regmap,
- MAX77686_REG_32KHZ, max77686->mask, max77686->mask);
+ struct max77686_clk *max77686 = to_max77686_clk(hw);

- return ret;
+ return regmap_update_bits(max77686->iodev->regmap,
+ MAX77686_REG_32KHZ, max77686->mask,
+ max77686->mask);
}

static void max77686_clk_unprepare(struct clk_hw *hw)
{
- struct max77686_clk *max77686;
-
- max77686 = get_max77686_clk(hw);
- if (!max77686)
- return;
+ struct max77686_clk *max77686 = to_max77686_clk(hw);

regmap_update_bits(max77686->iodev->regmap,
- MAX77686_REG_32KHZ, max77686->mask, ~max77686->mask);
+ MAX77686_REG_32KHZ, max77686->mask, 0);
}

static int max77686_clk_is_enabled(struct clk_hw *hw)
{
- struct max77686_clk *max77686;
+ struct max77686_clk *max77686 = to_max77686_clk(hw);
int ret;
u32 val;

- max77686 = get_max77686_clk(hw);
- if (!max77686)
- return -ENOMEM;
-
ret = regmap_read(max77686->iodev->regmap,
MAX77686_REG_32KHZ, &val);

--
1.7.9.5




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