linux-kernel - [PATCH v3] regulator: tps65910: Add missing breaks in switch/case

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Date:	Sun, 10 Jul 2011 21:44:09 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Graeme Gregory <gg@...mlogic.co.uk>, Liam Girdwood <lrg@...com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH v3] regulator: tps65910: Add missing breaks in switch/case

Also add a default case in tps65910_list_voltage_dcdc to silence
'volt' may be used uninitialized in this function warning.

Signed-off-by: Axel Lin <axel.lin@...il.com>
Acked-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
---
v2: Just found another missing breaks in tps65910_list_voltage_dcdc.
   And also silence the 'volt' may be used uninitialized warning by
   adding a default case.
v3: Base on Mark's comment to add a BUG()

 drivers/regulator/tps65910-regulator.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
index 55dd4e6..425aab3 100644
--- a/drivers/regulator/tps65910-regulator.c
+++ b/drivers/regulator/tps65910-regulator.c
@@ -759,8 +759,13 @@ static int tps65910_list_voltage_dcdc(struct regulator_dev *dev,
 		mult = (selector / VDD1_2_NUM_VOLTS) + 1;
 		volt = VDD1_2_MIN_VOLT +
 				(selector % VDD1_2_NUM_VOLTS) * VDD1_2_OFFSET;
+		break;
 	case TPS65911_REG_VDDCTRL:
 		volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET);
+		break;
+	default:
+		BUG();
+		return -EINVAL;
 	}
 
 	return  volt * 100 * mult;
@@ -898,9 +903,11 @@ static __devinit int tps65910_probe(struct platform_device *pdev)
 	case TPS65910:
 		pmic->get_ctrl_reg = &tps65910_get_ctrl_register;
 		info = tps65910_regs;
+		break;
 	case TPS65911:
 		pmic->get_ctrl_reg = &tps65911_get_ctrl_register;
 		info = tps65911_regs;
+		break;
 	default:
 		pr_err("Invalid tps chip version\n");
 		return -ENODEV;
-- 
1.7.4.1



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