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@xxxxxxxxxx> Signed-off-by: Fabio Baltieri <fabio.baltieri@xxxxxxxxxx> --- drivers/usb/phy/phy-ab8500-usb.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c index b8115b0..ac27ed2 100644 --- a/drivers/usb/phy/phy-ab8500-usb.c +++ b/drivers/usb/phy/phy-ab8500-usb.c @@ -170,7 +170,9 @@ static void ab8500_usb_regulator_enable(struct ab8500_usb *ab) { 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); @@ -188,7 +190,9 @@ static void ab8500_usb_regulator_enable(struct ab8500_usb *ab) 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); @@ -197,7 +201,9 @@ static void ab8500_usb_regulator_enable(struct ab8500_usb *ab) 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) -- 1.8.1.3 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html