irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()

Browse source

[ Upstream commit 7dbc0d40d8 ]

If irq_domain_translate_twocell() sets "hwirq" to >= MCHP_EIC_NIRQ (2) then
it results in an out of bounds access.

The code checks for invalid values, but doesn't set the error code.  Return
-EINVAL in that case, instead of returning success.

Fixes: 00fa3461c8 ("irqchip/mchp-eic: Add support for the Microchip EIC")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://patch.msgid.link/aTfHmOz6IBpTIPU5@stanley.mountain
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Dan Carpenter 2025-12-09 09:54:16 +03:00 • committed by Greg Kroah-Hartman

parent da07fa8730

commit efd65e2e2f

1 changed files with 1 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

drivers/irqchip/irq-mchp-eic.c

View file