lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Sun, 7 Aug 2022 21:35:16 -0400 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Antonio Borneo <antonio.borneo@...s.st.com>, Marc Zyngier <maz@...nel.org>, Sasha Levin <sashal@...nel.org>, tglx@...utronix.de Subject: [PATCH AUTOSEL 5.15 12/45] genirq: Don't return error on missing optional irq_request_resources() From: Antonio Borneo <antonio.borneo@...s.st.com> [ Upstream commit 95001b756467ecc9f5973eb5e74e97699d9bbdf1 ] Function irq_chip::irq_request_resources() is reported as optional in the declaration of struct irq_chip. If the parent irq_chip does not implement it, we should ignore it and return. Don't return error if the functions is missing. Signed-off-by: Antonio Borneo <antonio.borneo@...s.st.com> Signed-off-by: Marc Zyngier <maz@...nel.org> Link: https://lore.kernel.org/r/20220512160544.13561-1-antonio.borneo@foss.st.com Signed-off-by: Sasha Levin <sashal@...nel.org> --- kernel/irq/chip.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index a98bcfc4be7b..f3920374f71c 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -1516,7 +1516,8 @@ int irq_chip_request_resources_parent(struct irq_data *data) if (data->chip->irq_request_resources) return data->chip->irq_request_resources(data); - return -ENOSYS; + /* no error on missing optional irq_chip::irq_request_resources */ + return 0; } EXPORT_SYMBOL_GPL(irq_chip_request_resources_parent); -- 2.35.1
Powered by blists - more mailing lists