mailbox: zynqmp-ipi: Fix SGI cleanup on unbind

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[ Upstream commit bb160e791a ]

The driver incorrectly determines SGI vs SPI interrupts by checking IRQ
number < 16, which fails with dynamic IRQ allocation. During unbind,
this causes improper SGI cleanup leading to kernel crash.

Add explicit irq_type field to pdata for reliable identification of SGI
interrupts (type-2) and only clean up SGI resources when appropriate.

Fixes: 6ffb163534 ("mailbox: zynqmp: handle SGI for shared IPI")
Signed-off-by: Harini T <harini.t@amd.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Harini T 2025-09-29 13:07:23 +05:30 • committed by Greg Kroah-Hartman

parent ab96f08ece

commit 32bf7c6e01

1 changed files with 10 additions and 5 deletions

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drivers/mailbox/zynqmp-ipi-mailbox.c

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