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: f316cdff8d67 ("clk: Annotate struct clk_hw_onecell_data with __counted_by")
Signed-off-by: Haoyu Li <lihaoyu499@gmail.com>
Link: https://lore.kernel.org/r/20241203142915.345523-1-lihaoyu499@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/drivers/clk/clk-en7523.c b/drivers/clk/clk-en7523.c
index 239cb04d9ae3fd183610f9fbfa0dcc4b3424c190..495c0d607c7d5be2163e3258aaa2fd8745095a90 100644 (file)
--- a/drivers/clk/clk-en7523.c
+++ b/drivers/clk/clk-en7523.c
@@ -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,