From: Peter Ujfalusi Date: Wed, 21 Aug 2013 08:31:37 +0000 (+0300) Subject: twl4030-charger: Fix compiler warning with regulator_enable() X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=697be361d2b3fd7760869341d7ce805092a5c1e5;p=linux-beck.git twl4030-charger: Fix compiler warning with regulator_enable() The return value of regulator_enable need to be checked. This patch fixes the following warning: drivers/power/twl4030_charger.c: In function ‘twl4030_charger_enable_usb’: drivers/power/twl4030_charger.c:192:20: warning: ignoring return value of ‘regulator_enable’, declared with attribute warn_unused_result [-Wunused-result] Signed-off-by: Peter Ujfalusi Signed-off-by: Anton Vorontsov --- diff --git a/drivers/power/twl4030_charger.c b/drivers/power/twl4030_charger.c index be98e70380f9..d98abe911e37 100644 --- a/drivers/power/twl4030_charger.c +++ b/drivers/power/twl4030_charger.c @@ -189,7 +189,12 @@ static int twl4030_charger_enable_usb(struct twl4030_bci *bci, bool enable) /* Need to keep regulator on */ if (!bci->usb_enabled) { - regulator_enable(bci->usb_reg); + ret = regulator_enable(bci->usb_reg); + if (ret) { + dev_err(bci->dev, + "Failed to enable regulator\n"); + return ret; + } bci->usb_enabled = 1; }