[PATCH] regulator: Fix unbalanced lock/unlock inmc13892_regulator_probe error path

From: Axel Lin
Date: Thu Mar 15 2012 - 00:49:15 EST


We do not hold a lock while registering regulator, thus should not call unlock
if regulator_register fails.

Signed-off-by: Axel Lin <axel.lin@xxxxxxxxx>
---
drivers/regulator/mc13892-regulator.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
index e8cfc99..845aa22 100644
--- a/drivers/regulator/mc13892-regulator.c
+++ b/drivers/regulator/mc13892-regulator.c
@@ -552,7 +552,7 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev)
mc13xxx_lock(mc13892);
ret = mc13xxx_reg_read(mc13892, MC13892_REVISION, &val);
if (ret)
- goto err_free;
+ goto err_unlock;

/* enable switch auto mode */
if ((val & 0x0000FFFF) == 0x45d0) {
@@ -562,7 +562,7 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev)
MC13892_SWITCHERS4_SW1MODE_AUTO |
MC13892_SWITCHERS4_SW2MODE_AUTO);
if (ret)
- goto err_free;
+ goto err_unlock;

ret = mc13xxx_reg_rmw(mc13892, MC13892_SWITCHERS5,
MC13892_SWITCHERS5_SW3MODE_M |
@@ -570,7 +570,7 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev)
MC13892_SWITCHERS5_SW3MODE_AUTO |
MC13892_SWITCHERS5_SW4MODE_AUTO);
if (ret)
- goto err_free;
+ goto err_unlock;
}
mc13xxx_unlock(mc13892);

@@ -612,10 +612,10 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev)
err:
while (--i >= 0)
regulator_unregister(priv->regulators[i]);
+ return ret;

-err_free:
+err_unlock:
mc13xxx_unlock(mc13892);
-
return ret;
}

--
1.7.5.4



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