irqchip/loongson-liointc: Fix improper error handling in liointc_init()

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[ Upstream commit 4a60a3cdcf ]

For cores less than 4, eg, loongson2k1000 with 2 cores, the
of_property_match_string() may return with an error value,
which causes that liointc could not work. At least isr0 is
what should be checked like previous commit b2c4c3969f
("irqchip/loongson-liointc: irqchip add 2.0 version") did.

Fixes: 0858ed035a ("irqchip/loongson-liointc: Add ACPI init support")
Signed-off-by: Liu Peibao <liupeibao@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221104110712.23300-1-liupeibao@loongson.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Liu Peibao 2022-11-04 19:07:12 +08:00 • committed by Greg Kroah-Hartman

parent 773c9d7f12

commit 6a9592cd34

1 changed files with 4 additions and 1 deletions

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drivers/irqchip/irq-loongson-liointc.c

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