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powerpc/pseries: Correct MSI allocation tracking

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The per-device MSI allocation calculation in pseries_irq_domain_alloc()
is clearly wrong. It can still happen to work when nr_irqs is 1.

Correct it.

Fixes: c0215e2d72 ("powerpc/pseries: Fix MSI-X allocation failure when quota is exceeded")
Cc: stable@vger.kernel.org
Signed-off-by: Nam Cao <namcao@linutronix.de>
Reviewed-by: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
[maddy: Fixed Nilay's reviewed-by tag]
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260302003948.1452016-1-namcao@linutronix.de
This commit is contained in:
Nam Cao 2026-03-02 01:39:48 +01:00 committed by Madhavan Srinivasan
parent 6373a2b5c8
commit 35e4f2a17e
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/platforms/pseries/msi.c
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@ -605,7 +605,7 @@ static int pseries_irq_domain_alloc(struct irq_domain *domain, unsigned int virq
&pseries_msi_irq_chip, pseries_dev);
}
pseries_dev->msi_used++;
pseries_dev->msi_used += nr_irqs;
return 0;
out: