[tip: irq/core] genirq/proc: Change the return value for set affinity permission error

From: tip-bot2 for Jeff Xie
Date: Thu Aug 29 2024 - 10:46:54 EST


The following commit has been merged into the irq/core branch of tip:

Commit-ID: eb29369fa543e7d5557c19ebecf072244bb14815
Gitweb: https://git.kernel.org/tip/eb29369fa543e7d5557c19ebecf072244bb14815
Author: Jeff Xie <jeff.xie@xxxxxxxxx>
AuthorDate: Mon, 26 Aug 2024 22:58:05 +08:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Thu, 29 Aug 2024 16:42:06 +02:00

genirq/proc: Change the return value for set affinity permission error

Currently, when the affinity of an irq cannot be set due to lack of
permission, the write_irq_affinity() returns the error code -EIO.

Change the return value to -EPERM as that reflects the cause of error
correctly.

Signed-off-by: Jeff Xie <jeff.xie@xxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/all/20240826145805.5938-1-jeff.xie@xxxxxxxxx
---
kernel/irq/proc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index d98fb9c..9081ada 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -140,7 +140,7 @@ static ssize_t write_irq_affinity(int type, struct file *file,
int err;

if (!irq_can_set_affinity_usr(irq) || no_irq_affinity)
- return -EIO;
+ return -EPERM;

if (!zalloc_cpumask_var(&new_value, GFP_KERNEL))
return -ENOMEM;