[PATCH] sh: maple: use the matching IRQ cookie

From: Runyu Xiao

Date: Fri Oct 09 2026 - 00:03:27 EST


The Maple DMA and VBLANK handlers are registered with
&maple_unsupported_device as their dev_id. Passing NULL to free_irq()
cannot find either action, so the handlers remain registered and the
IRQ core warns.

Use the same cookie when freeing both handlers on the error paths.

Fixes: 17be2d2b1c33 ("sh: Add maple bus support for the SEGA Dreamcast.")
Cc: stable@xxxxxxxxxxxxxxx
Assisted-by: LLM
Signed-off-by: Runyu Xiao <runyu.xiao@xxxxxxxxxx>
---
drivers/sh/maple/maple.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c
index 5585f220e..7df88e00c 100644
--- a/drivers/sh/maple/maple.c
+++ b/drivers/sh/maple/maple.c
@@ -863,10 +863,10 @@ static int __init maple_bus_init(void)
kmem_cache_destroy(maple_queue_cache);

cleanup_bothirqs:
- free_irq(HW_EVENT_VSYNC, 0);
+ free_irq(HW_EVENT_VSYNC, &maple_unsupported_device);

cleanup_irq:
- free_irq(HW_EVENT_MAPLE_DMA, 0);
+ free_irq(HW_EVENT_MAPLE_DMA, &maple_unsupported_device);

cleanup_dma:
free_pages((unsigned long) maple_sendbuf, MAPLE_DMA_PAGES);
--
2.34.1