genirq: Initialize resend_node hlist for all interrupt descriptors
authorDawei Li <dawei.li@shingroup.cn>
Mon, 22 Jan 2024 08:57:15 +0000 (16:57 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 1 Feb 2024 00:19:13 +0000 (16:19 -0800)
commit5966ed9caae31f646391d0a8f7fc82d22db34fd7
treeecc74ad3d7d273f02055657ada69651f9a465deb
parent33f49a68352dcd15b7b32ee5c3e954cad7bb21f6
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>
kernel/irq/irqdesc.c