[PATCH] clk: nuvoton: ma35d1-divider: simplify allocation

[PATCH] clk: nuvoton: ma35d1-divider: simplify allocation

[Rosen Penev]

Use a flexible array member instead of kcalloc + pointer that is not
actually const.

Simplifies allocation slightly.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 drivers/clk/nuvoton/clk-ma35d1-divider.c | 20 +++++++-------------
 1 file changed, 7 insertions(+), 13 deletions(-)

diff --git a/drivers/clk/nuvoton/clk-ma35d1-divider.c b/drivers/clk/nuvoton/clk-ma35d1-divider.c
index e992e7c30341..6eaca5b35dd8 100644
--- a/drivers/clk/nuvoton/clk-ma35d1-divider.c
+++ b/drivers/clk/nuvoton/clk-ma35d1-divider.c
@@ -17,9 +17,9 @@ struct ma35d1_adc_clk_div {
 	u8 shift;
 	u8 width;
 	u32 mask;
-	const struct clk_div_table *table;
 	/* protects concurrent access to clock divider registers */
 	spinlock_t *lock;
+	struct clk_div_table table[];
 };
 
 static inline struct ma35d1_adc_clk_div *to_ma35d1_adc_clk_div(struct clk_hw *_hw)
@@ -83,30 +83,25 @@ struct clk_hw *ma35d1_reg_adc_clkdiv(struct device *dev, const char *name,
 {
 	struct ma35d1_adc_clk_div *div;
 	struct clk_init_data init;
-	struct clk_div_table *table;
 	struct clk_parent_data pdata = { .index = 0 };
 	u32 max_div, min_div;
 	struct clk_hw *hw;
 	int ret;
 	int i;
 
-	div = devm_kzalloc(dev, sizeof(*div), GFP_KERNEL);
-	if (!div)
-		return ERR_PTR(-ENOMEM);
-
 	max_div = clk_div_mask(width) + 1;
 	min_div = 1;
 
-	table = devm_kcalloc(dev, max_div + 1, sizeof(*table), GFP_KERNEL);
-	if (!table)
+	div = devm_kzalloc(dev, struct_size(div, table, max_div + 1), GFP_KERNEL);
+	if (!div)
 		return ERR_PTR(-ENOMEM);
 
 	for (i = 0; i < max_div; i++) {
-		table[i].val = min_div + i;
-		table[i].div = 2 * table[i].val;
+		div->table[i].val = min_div + i;
+		div->table[i].div = 2 * div->table[i].val;
 	}
-	table[max_div].val = 0;
-	table[max_div].div = 0;
+	div->table[max_div].val = 0;
+	div->table[max_div].div = 0;
 
 	memset(&init, 0, sizeof(init));
 	init.name = name;
@@ -122,7 +117,6 @@ struct clk_hw *ma35d1_reg_adc_clkdiv(struct device *dev, const char *name,
 	div->mask = mask_bit ? BIT(mask_bit) : 0;
 	div->lock = lock;
 	div->hw.init = &init;
-	div->table = table;
 
 	hw = &div->hw;
 	ret = devm_clk_hw_register(dev, hw);
-- 
2.53.0