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From:   Jim Quinlan <jim2101024@gmail.com>
To:     linux-pci@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
        Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
        bcm-kernel-feedback-list@broadcom.com, james.quinlan@broadcom.com
Cc:     Jim Quinlan <jim2101024@gmail.com>,
        Nicolas Saenz Julienne <nsaenz@kernel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Rob Herring <robh@kernel.org>,
        =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= <kw@linux.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Jim Quinlan <jquinlan@broadcom.com>,
        linux-rpi-kernel@lists.infradead.org (moderated list:BROADCOM
        BCM2711/BCM2835 ARM ARCHITECTURE),
        linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM
        BCM2711/BCM2835 ARM ARCHITECTURE),
        linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v2 1/3] PCI: brcmstb: Check return value of clk_prepare_enable()
Date:   Tue, 15 Jun 2021 15:14:02 -0400
Message-Id: <20210615191405.21878-2-jim2101024@gmail.com>
In-Reply-To: <20210615191405.21878-1-jim2101024@gmail.com>
References: <20210615191405.21878-1-jim2101024@gmail.com>
Precedence: bulk

Check for failure of clk_prepare_enable() on device resume.

Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Fixes: 8195b7417018 ("PCI: brcmstb: Add suspend and resume pm_ops")
---
 drivers/pci/controller/pcie-brcmstb.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index 08bc788d9422..abc62a86d94e 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -1162,7 +1162,9 @@ static int brcm_pcie_resume(struct device *dev)
 	int ret;
 
 	base = pcie->base;
-	clk_prepare_enable(pcie->clk);
+	ret = clk_prepare_enable(pcie->clk);
+	if (ret)
+		return ret;
 
 	ret = reset_control_reset(pcie->rescal);
 	if (ret)
-- 
2.17.1