Hi Yong,
We're getting pretty close - just a couple of changes:
> + } else {
> + struct preinit_clk *p;
> + mutex_lock(&preinit_lock);
> + p = kmalloc(sizeof(*p), GFP_KERNEL);
> + if (!p)
> + goto unlock;
> + p->clk = clk;
> + list_add(&p->list, &preinit_clks);
> +unlock:
> + mutex_unlock(&preinit_lock);
> + }
Might be best to avoid the goto:
} else {
struct preinit_clk *p;
mutex_lock(&preinit_lock);
p = kmalloc(sizeof(*p), GFP_KERNEL);
if (p) {
p->clk = clk;
list_add(&p->list, &preinit_clks);
}
mutex_unlock(&preinit_lock);
}
> +static int __init clk_debugfs_init(void)
> +{
> + struct preinit_clk *pclk, *tmp;
> +
> + if (debugfs_initialized())
> + init_done = 1;
No need to check debugfs_initialised() here; if it's not initialised we're in
trouble anyway.
> +
> + list_for_each_entry(pclk, &preinit_clks, list) {
> + clk_debug_register(pclk->clk);
> + }
You should hold preinit_lock while traversing the list here.
Cheers,
Jeremy
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