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irqchip/gic: Correctly validate OF quirk descriptors

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[ Upstream commit 91539341a3b6e9c868024a4292455dae36e6f58c ]

When checking for OF quirks, make sure either 'compatible' or 'property'
is set, and give up otherwise.

This avoids non-OF quirks being randomly applied as they don't have any
of the OF data that need checking.

Cc: Douglas Anderson <dianders@chromium.org>
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Fixes: 44bd78dd2b88 ("irqchip/gic-v3: Disable pseudo NMIs on Mediatek devices w/ firmware issues")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Marc Zyngier
2023-05-30 11:01:22 +01:00
committed by Greg Kroah-Hartman
parent 2a2641a842
commit 93a68acc49
1 changed files with 2 additions and 0 deletions
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2
drivers/irqchip/irq-gic-common.c
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@@ -29,6 +29,8 @@ void gic_enable_of_quirks(const struct device_node *np,
const struct gic_quirk *quirks, void *data) const struct gic_quirk *quirks, void *data)
{ {
for (; quirks->desc; quirks++) { for (; quirks->desc; quirks++) {
if (!quirks->compatible && !quirks->property)
continue;
if (quirks->compatible && if (quirks->compatible &&
!of_device_is_compatible(np, quirks->compatible)) !of_device_is_compatible(np, quirks->compatible))
continue; continue;