genirq: Initialize resend_node hlist for all interrupt descriptors

commit b184c8c2889ceef0a137c7d0567ef9fe3d92276e upstream.

For a CONFIG_SPARSE_IRQ=n kernel, early_irq_init() is supposed to
initialize all interrupt descriptors.

It does except for irq_desc::resend_node, which ia only initialized for the
first descriptor.

Use the indexed decriptor and not the base pointer to address that.

Fixes: bc06a9e08742 ("genirq: Use hlist for managing resend handlers")
Signed-off-by: Dawei Li <dawei.li@shingroup.cn>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240122085716.2999875-5-dawei.li@shingroup.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 27ca1c8..371eb17 100644 (file)
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -600,7 +600,7 @@ int __init early_irq_init(void)
                mutex_init(&desc[i].request_mutex);
                init_waitqueue_head(&desc[i].wait_for_threads);
                desc_set_defaults(i, &desc[i], node, NULL, NULL);
-               irq_resend_init(desc);
+               irq_resend_init(&desc[i]);
        }
        return arch_early_irq_init();
 }