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authorThomas Gleixner <tglx@linutronix.de>2024-02-20 09:46:19 +0100
committerThomas Gleixner <tglx@linutronix.de>2024-02-20 17:30:57 +0100
commit34da27aa8956d3a75c7556a59c9c7cfd0b3f18ab (patch)
tree6722c2f628ef762d4d594aa4ac2544b46a2f4c0c
parent9bbe13a5d414a7f8208dba64b54d2b6e4f7086bd (diff)
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: de1ff306dcf4 ("genirq/irqdomain: Remove the param count restriction from select()") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/87ttm3ikok.ffs@tglx
-rw-r--r--drivers/irqchip/irq-imx-intmux.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-imx-intmux.c b/drivers/irqchip/irq-imx-intmux.c
index aa041e4dfee0..65084c7619b0 100644
--- a/drivers/irqchip/irq-imx-intmux.c
+++ b/drivers/irqchip/irq-imx-intmux.c
@@ -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];
}