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[46.91.239.54]) by smtp.gmail.com with ESMTPSA id f21sm841586wmb.2.2019.05.29.03.26.56 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Wed, 29 May 2019 03:26:56 -0700 (PDT) From: Thierry Reding To: Thierry Reding Subject: [PATCH 1/2] soc/tegra: pmc: Fail to allocate more than one wake IRQ Date: Wed, 29 May 2019 12:26:53 +0200 Message-Id: <20190529102654.14665-1-thierry.reding@gmail.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190529_032659_547414_7B1897C5 X-CRM114-Status: GOOD ( 11.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-tegra@vger.kernel.org, Bitan Biswas , linux-arm-kernel@lists.infradead.org, Jon Hunter Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel