Commit 34da27aa authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

irqchip/imx-intmux: Handle pure domain searches correctly 



The removal of the paremeter count restriction in the core code to allow
pure domain token based select() decisions broke the IMX intmux select
callback as that unconditioally expects that there is a parameter.

Add the missing check for zero parameter count and the token match.

Fixes: de1ff306 ("genirq/irqdomain: Remove the param count restriction from select()")
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/87ttm3ikok.ffs@tglx
parent 9bbe13a5

drivers/irqchip/irq-imx-intmux.c

+4 −0
Original line number Diff line number Diff line
@@ -166,6 +166,10 @@ static int imx_intmux_irq_select(struct irq_domain *d, struct irq_fwspec *fwspec 
	if (fwspec->fwnode != d->fwnode)

		return false;



	/* Handle pure domain searches */

	if (!fwspec->param_count)

		return d->bus_token == bus_token;



	return irqchip_data->chanidx == fwspec->param[1];

}