On Mon, Feb 20, 2023 at 07:01:01PM +0000, Marc Zyngier wrote:
> Calling msi_ctrl_valid() ultimately results in calling
> msi_get_device_domain(), which requires holding the device MSI lock.
>
> However, we take that lock right after having called msi_ctrl_valid(),
> which is just a tad too late. Taking the lock earlier solves the issue.
>
> Fixes: 40742716f294 ("genirq/msi: Make msi_add_simple_msi_descs() device domain aware")
> Reported-by: "Russell King (Oracle)" <linux@xxxxxxxxxxxxxxx>
Tested-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
Thanks!
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