From: Neil Greatorex <[email protected]>
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')
Cc: <[email protected]> # v3.13+
Signed-off-by: Neil Greatorex <[email protected]>
Signed-off-by: Thomas Petazzoni <[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 78b0ac9..868d11b 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,
--
1.9.2
--
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