From: Axel Lin <axel.lin@ingics.com>
To: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Vivek Gautam <gautam.vivek@samsung.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-samsung-soc@vger.kernel.org"
<linux-samsung-soc@vger.kernel.org>
Subject: [PATCH] phy: exynos5-usbdrd: Fix off-by-one valid value checking for args->args[0]
Date: Fri, 27 Feb 2015 23:44:24 +0800 [thread overview]
Message-ID: <1425051864.6032.1.camel@phoenix> (raw)
Current code uses args->args[0] as array subscript of phy_drd->phys[].
So the valid value range for args->args[0] is 0 ... EXYNOS5_DRDPHYS_NUM - 1.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
drivers/phy/phy-exynos5-usbdrd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/phy/phy-exynos5-usbdrd.c b/drivers/phy/phy-exynos5-usbdrd.c
index 0437401..e2a0be7 100644
--- a/drivers/phy/phy-exynos5-usbdrd.c
+++ b/drivers/phy/phy-exynos5-usbdrd.c
@@ -531,7 +531,7 @@ static struct phy *exynos5_usbdrd_phy_xlate(struct device *dev,
{
struct exynos5_usbdrd_phy *phy_drd = dev_get_drvdata(dev);
- if (WARN_ON(args->args[0] > EXYNOS5_DRDPHYS_NUM))
+ if (WARN_ON(args->args[0] >= EXYNOS5_DRDPHYS_NUM))
return ERR_PTR(-ENODEV);
return phy_drd->phys[args->args[0]].phy;
--
1.9.1
next reply other threads:[~2015-02-27 15:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-27 15:44 Axel Lin [this message]
2015-03-02 11:11 ` [PATCH] phy: exynos5-usbdrd: Fix off-by-one valid value checking for args->args[0] Vivek Gautam
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