Commit c0cdfaa0 authored by Axel Lin's avatar Axel Lin Committed by Grant Likely

of/irq: Avoid calling list_first_entry() for empty list

list_first_entry() expects the list is not empty, we need to check if list is
empty before calling list_first_entry(). Thus use list_first_entry_or_null()
instead of list_first_entry().
Signed-off-by: default avatarAxel Lin <axel.lin@ingics.com>
Signed-off-by: default avatarGrant Likely <grant.likely@linaro.org>
parent cfd1ee3e
......@@ -482,8 +482,9 @@ void __init of_irq_init(const struct of_device_id *matches)
}
/* Get the next pending parent that might have children */
desc = list_first_entry(&intc_parent_list, typeof(*desc), list);
if (list_empty(&intc_parent_list) || !desc) {
desc = list_first_entry_or_null(&intc_parent_list,
typeof(*desc), list);
if (!desc) {
pr_err("of_irq_init: children remain, but no parents\n");
break;
}
......
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