usb: gadget: s3c-hsotg: Use devm_regulator_bulk_get API

devm_regulator_bulk_get is device managed and saves some cleanup
and exit code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/gadget/s3c-hsotg.c

@@ -3573,7 +3573,7 @@ static int s3c_hsotg_probe(struct platform_device *pdev)
 	for (i = 0; i < ARRAY_SIZE(hsotg->supplies); i++)
 		hsotg->supplies[i].supply = s3c_hsotg_supply_names[i];
 
-	ret = regulator_bulk_get(dev, ARRAY_SIZE(hsotg->supplies),
+	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(hsotg->supplies),
 				 hsotg->supplies);
 	if (ret) {
 		dev_err(dev, "failed to request supplies: %d\n", ret);
@@ -3663,8 +3663,6 @@ err_ep_mem:
 	kfree(eps);
 err_supplies:
 	s3c_hsotg_phy_disable(hsotg);
-	regulator_bulk_free(ARRAY_SIZE(hsotg->supplies), hsotg->supplies);
-
 err_clk:
 	clk_disable_unprepare(hsotg->clk);
 
@@ -3689,7 +3687,6 @@ static int s3c_hsotg_remove(struct platform_device *pdev)
 	}
 
 	s3c_hsotg_phy_disable(hsotg);
-	regulator_bulk_free(ARRAY_SIZE(hsotg->supplies), hsotg->supplies);
 
 	clk_disable_unprepare(hsotg->clk);