[PATCH 01/33] usb: phy: use match_string() helper

[Yisheng Xie]

match_string() returns the index of an array for a matching string,
which can be used intead of open coded variant.

Cc: linux-...@vger.kernel.org
Cc: Felipe Balbi <ba...@kernel.org>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Yisheng Xie <xieyishe...@huawei.com>
---
 drivers/usb/phy/of.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/phy/of.c b/drivers/usb/phy/of.c
index 1ab134f..5777c9f 100644
--- a/drivers/usb/phy/of.c
+++ b/drivers/usb/phy/of.c
@@ -28,16 +28,14 @@
 enum usb_phy_interface of_usb_get_phy_mode(struct device_node *np)
 {
        const char *phy_type;
-       int err, i;
+       int ret;
 
-       err = of_property_read_string(np, "phy_type", &phy_type);
-       if (err < 0)
+       ret = of_property_read_string(np, "phy_type", &phy_type);
+       if (ret < 0)
                return USBPHY_INTERFACE_MODE_UNKNOWN;
 
-       for (i = 0; i < ARRAY_SIZE(usbphy_modes); i++)
-               if (!strcmp(phy_type, usbphy_modes[i]))
-                       return i;
+       ret = match_string(usbphy_modes, ARRAY_SIZE(usbphy_modes), phy_type);
 
-       return USBPHY_INTERFACE_MODE_UNKNOWN;
+       return (ret < 0) ? USBPHY_INTERFACE_MODE_UNKNOWN : ret;
 }
 EXPORT_SYMBOL_GPL(of_usb_get_phy_mode);
-- 
1.7.12.4