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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>
This commit is contained in:
Peter Ujfalusi 2013-08-21 11:31:37 +03:00 committed by Anton Vorontsov
parent 8e2747f031
commit 697be361d2
1 changed files with 6 additions and 1 deletions
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7
drivers/power/twl4030_charger.c
View File

@ -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;
}