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usb: phy: gpio-vbus: don't ignore regulator APIs return value

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Due to recent changes to regulator API, all
users which don't check regulator_{en,dis}able()'s
return value will generate compile warnings.

Add such checks to gpio-vbus.

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2013-03-20 08:01:53 +02:00
parent b64a15930c
commit e8d891fb7b
1 changed files with 7 additions and 2 deletions
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9
drivers/usb/phy/phy-gpio-vbus-usb.c
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@ -61,6 +61,7 @@ static void set_vbus_draw(struct gpio_vbus_data *gpio_vbus, unsigned mA)
{
struct regulator *vbus_draw = gpio_vbus->vbus_draw;
int enabled;
int ret;
if (!vbus_draw)
return;
@ -69,12 +70,16 @@ static void set_vbus_draw(struct gpio_vbus_data *gpio_vbus, unsigned mA)
if (mA) {
regulator_set_current_limit(vbus_draw, 0, 1000 * mA);
if (!enabled) {
regulator_enable(vbus_draw);
ret = regulator_enable(vbus_draw);
if (ret < 0)
return;
gpio_vbus->vbus_draw_enabled = 1;
}
} else {
if (enabled) {
regulator_disable(vbus_draw);
ret = regulator_disable(vbus_draw);
if (ret < 0)
return;
gpio_vbus->vbus_draw_enabled = 0;
}
}