usb: phy: ab8500-usb: check regulator_enable return value
Since regulator_enable() is going to be marked as __must_check in the
next merge window, always check regulator_enable() return value and
print a warning if it fails.
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c
index 749614c..4acef26 100644
--- a/drivers/usb/phy/phy-ab8500-usb.c
+++ b/drivers/usb/phy/phy-ab8500-usb.c
@@ -167,7 +167,9 @@
{
int ret, volt;
- regulator_enable(ab->v_ape);
+ ret = regulator_enable(ab->v_ape);
+ if (ret)
+ dev_err(ab->dev, "Failed to enable v-ape\n");
if (!is_ab8500_2p0_or_earlier(ab->ab8500)) {
ab->saved_v_ulpi = regulator_get_voltage(ab->v_ulpi);
@@ -185,7 +187,9 @@
ret);
}
- regulator_enable(ab->v_ulpi);
+ ret = regulator_enable(ab->v_ulpi);
+ if (ret)
+ dev_err(ab->dev, "Failed to enable vddulpivio18\n");
if (!is_ab8500_2p0_or_earlier(ab->ab8500)) {
volt = regulator_get_voltage(ab->v_ulpi);
@@ -194,7 +198,9 @@
volt);
}
- regulator_enable(ab->v_musb);
+ ret = regulator_enable(ab->v_musb);
+ if (ret)
+ dev_err(ab->dev, "Failed to enable musb_1v8\n");
}
static void ab8500_usb_regulator_disable(struct ab8500_usb *ab)