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

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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@linux.dev>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240826145805.5938-1-jeff.xie@linux.dev
This commit is contained in:
Jeff Xie 2024-08-26 22:58:05 +08:00 • committed by Thomas Gleixner
parent 9012f84e1c
commit eb29369fa5
1 changed files with 1 additions and 1 deletions
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2
kernel/irq/proc.c
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@ -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;