armbian/linux-rockchip
0
0
Fork 0
mirror of https://github.com/armbian/linux-rockchip.git synced 2026-01-06 11:08:10 -08:00
Code Issues Packages Projects Releases Wiki Activity

genirq: Don't return error on missing optional irq_request_resources()

Browse Source 
[ Upstream commit 95001b7564 ]

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@foss.st.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220512160544.13561-1-antonio.borneo@foss.st.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Antonio Borneo
2022-05-12 18:05:44 +02:00
committed by Greg Kroah-Hartman
parent d08bb199a4
commit 4aba3247af
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
kernel/irq/chip.c
View File

@@ -1543,7 +1543,8 @@ 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);