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authorThierry Reding <treding@nvidia.com>2019-05-27 13:15:12 +0300
committerThierry Reding <treding@nvidia.com>2019-06-05 10:52:53 +0300
commit77226d97725034542caadf97a4bb9969d5838ee8 (patch)
treee9f7c0cada39356c8d83ee7169a464b3f1b7aee8 /drivers/soc/tegra
parenta188339ca5a396acc588e5851ed7e19f66b0ebd9 (diff)
downloadlinux-77226d97725034542caadf97a4bb9969d5838ee8.tar.xz
soc/tegra: pmc: Fail to allocate more than one wake IRQ
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. Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/soc/tegra')
-rw-r--r--drivers/soc/tegra/pmc.c3
1 files changed, 3 insertions, 0 deletions
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];