Commit 52fd1709 authored by Haoyu Li's avatar Haoyu Li Committed by Stephen Boyd
Browse files

clk: en7523: Initialize num before accessing hws in en7523_register_clocks() 



With the new __counted_by annotation in clk_hw_onecell_data, the "num"
struct member must be set before accessing the "hws" array. Failing to
do so will trigger a runtime warning when enabling CONFIG_UBSAN_BOUNDS
and CONFIG_FORTIFY_SOURCE.

Fixes: f316cdff ("clk: Annotate struct clk_hw_onecell_data with __counted_by")
Signed-off-by: default avatarHaoyu Li <lihaoyu499@gmail.com>
Link: https://lore.kernel.org/r/20241203142915.345523-1-lihaoyu499@gmail.com


Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent 2eb75f86

drivers/clk/clk-en7523.c

+2 −2
Original line number Diff line number Diff line
@@ -504,6 +504,8 @@ static void en7523_register_clocks(struct device *dev, struct clk_hw_onecell_dat 
	u32 rate;

	int i;



	clk_data->num = EN7523_NUM_CLOCKS;



	for (i = 0; i < ARRAY_SIZE(en7523_base_clks); i++) {

		const struct en_clk_desc *desc = &en7523_base_clks[i];

		u32 reg = desc->div_reg ? desc->div_reg : desc->base_reg;
@@ -525,8 +527,6 @@ static void en7523_register_clocks(struct device *dev, struct clk_hw_onecell_dat 


	hw = en7523_register_pcie_clk(dev, np_base);

	clk_data->hws[EN7523_CLK_PCIE] = hw;



	clk_data->num = EN7523_NUM_CLOCKS;

}



static int en7523_clk_hw_init(struct platform_device *pdev,