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 <peter.ujfalusi@ti.com> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
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@ -189,7 +189,12 @@ static int twl4030_charger_enable_usb(struct twl4030_bci *bci, bool enable)
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/* Need to keep regulator on */
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/* Need to keep regulator on */
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if (!bci->usb_enabled) {
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if (!bci->usb_enabled) {
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regulator_enable(bci->usb_reg);
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ret = regulator_enable(bci->usb_reg);
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if (ret) {
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dev_err(bci->dev,
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"Failed to enable regulator\n");
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return ret;
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}
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bci->usb_enabled = 1;
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bci->usb_enabled = 1;
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}
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}
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