From: Arvind Yadav <arvind.yadav.cs@gmail.com>
To: stern@rowland.harvard.edu, kgene@kernel.org, krzk@kernel.org,
javier@osg.samsung.com, gregkh@linuxfoundation.org
Cc: linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] usb: host: ehci-exynos: Handle return value of clk_prepare_enable
Date: Mon, 12 Jun 2017 16:45:14 +0530 [thread overview]
Message-ID: <3aa745c2cea5b8a91d10f898bc201121001a9a0b.1497265923.git.arvind.yadav.cs@gmail.com> (raw)
clk_prepare_enable() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
drivers/usb/host/ehci-exynos.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c
index 7a603f6..26b6411 100644
--- a/drivers/usb/host/ehci-exynos.c
+++ b/drivers/usb/host/ehci-exynos.c
@@ -279,7 +279,9 @@ static int exynos_ehci_resume(struct device *dev)
struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd);
int ret;
- clk_prepare_enable(exynos_ehci->clk);
+ ret = clk_prepare_enable(exynos_ehci->clk);
+ if (ret)
+ return ret;
ret = exynos_ehci_phy_enable(dev);
if (ret) {
--
1.9.1
next reply other threads:[~2017-06-12 11:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-12 11:15 Arvind Yadav [this message]
2017-06-12 12:02 ` Krzysztof Kozlowski
2017-06-12 14:09 ` Alan Stern
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