From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: [PATCH v2 1/3] soc/tegra: pmc: Fail to allocate more than one wake IRQ Date: Tue, 4 Jun 2019 17:51:33 +0200 Message-ID: <20190604155135.25390-1-thierry.reding@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Thierry Reding Cc: linux-tegra@vger.kernel.org, Bitan Biswas , linux-arm-kernel@lists.infradead.org, Jon Hunter List-Id: linux-tegra@vger.kernel.org From: Thierry Reding 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 --- drivers/soc/tegra/pmc.c | 3 +++ 1 file changed, 3 insertions(+) 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]; -- 2.21.0