diff mbox series

[v2,1/3] soc/tegra: pmc: Fail to allocate more than one wake IRQ

Message ID 20190604155135.25390-1-thierry.reding@gmail.com (mailing list archive)
State New, archived
Headers show
Series [v2,1/3] soc/tegra: pmc: Fail to allocate more than one wake IRQ | expand

Commit Message

Thierry Reding June 4, 2019, 3:51 p.m. UTC 
From: Thierry Reding <treding@nvidia.com>

The code currently doesn't support allocating more than one wake IRQ at
a time. Detect this situation and error out. Also make sure to output a
warning when that happens to help track down callers.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/soc/tegra/pmc.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 5648e5c09ef5..653fe2c466f6 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -1863,6 +1863,9 @@  static int tegra_pmc_irq_alloc(struct irq_domain *domain, unsigned int virq,
 	unsigned int i;
 	int err = 0;
 
+	if (WARN_ON(num_irqs > 1))
+		return -EINVAL;
+
 	for (i = 0; i < soc->num_wake_events; i++) {
 		const struct tegra_wake_event *event = &soc->wake_events[i];