Re: [PATCH v3 3/3] PCI: rzg3s: Fix IRQ domain initialization error handling

[Claudiu Beznea]

On 8/11/26 23:00, Prabhakar wrote:
> From: Lad Prabhakar<prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
>
> rzg3s_pcie_init_irqdomain() installs chained handlers for the INTx
> parent interrupts before creating the INTx irqdomain and initializing
> MSI support.
>
> If any subsequent step fails, such as obtaining an INTx IRQ,
> creating the irqdomain, or initializing MSI, the error path returns
> without removing any chained handlers that were already installed.
> This leaves stale handler and data pointers attached to the parent
> interrupts.
>
> Add a helper to tear down the INTx IRQ setup, including removing the IRQ
> domain and clearing the chained handlers. Use it to unwind partially
> completed initialization and from the normal IRQ domain teardown path.
>
> Fixes: 7ef502fb35b28 ("PCI: Add Renesas RZ/G3S host controller driver")
> Cc:stable@xxxxxxxxxxxxxxx
> Signed-off-by: Lad Prabhakar<prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

Reviewed-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>