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phy: exynos5-usbdrd: Fix off-by-one valid value checking for args->args[0]

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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>
Reviewed by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Axel Lin 2015-02-27 23:44:24 +08:00 committed by Kishon Vijay Abraham I
parent 2f1bce487c
commit ecd5fb026d
1 changed files with 1 additions and 1 deletions
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2
drivers/phy/phy-exynos5-usbdrd.c
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@ -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;