3.13.11.3 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Neil Greatorex <[email protected]> commit ff3c664505bf8a8334bca5045e87b85cfe4d2277 upstream. Store the value of d->hwirq in a local variable as the real value is wiped out by calling irq_dispose_mapping. Without this patch, the armada_370_xp_free_msi function would always free MSI#0, no matter what was passed to it. Fixes: 31f614edb726fcc4d5aa0f2895fbdec9b04a3ca4 ('irqchip: armada-370-xp: implement MSI support') Signed-off-by: Neil Greatorex <[email protected]> Link: https://lkml.kernel.org/r/1397823593-1932-4-git-send-email-thomas.petazz...@free-electrons.com Signed-off-by: Thomas Petazzoni <[email protected]> Link: https://lkml.kernel.org/r/1397823593-1932-4-git-send-email-thomas.petazz...@free-electrons.com Signed-off-by: Jason Cooper <[email protected]> Signed-off-by: Kamal Mostafa <[email protected]> --- drivers/irqchip/irq-armada-370-xp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c index 6cb87c4..d9cd6df 100644 --- a/drivers/irqchip/irq-armada-370-xp.c +++ b/drivers/irqchip/irq-armada-370-xp.c @@ -158,8 +158,10 @@ static void armada_370_xp_teardown_msi_irq(struct msi_chip *chip, unsigned int irq) { struct irq_data *d = irq_get_irq_data(irq); + unsigned long hwirq = d->hwirq; + irq_dispose_mapping(irq); - armada_370_xp_free_msi(d->hwirq); + armada_370_xp_free_msi(hwirq); } static int armada_370_xp_check_msi_device(struct msi_chip *chip, struct pci_dev *dev, -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
