[PATCH] regulator: Remove mc13xxx_unlock in regulator_registerfailure path

From: Axel Lin
Date: Tue May 03 2011 - 11:15:20 EST


We do not hold the mutex_lock of struct mc13xxx while calling regulator_register,
Thus remove mc13xxx_unlock in regulator_register failure path.

Signed-off-by: Axel Lin <axel.lin@xxxxxxxxx>
---
drivers/regulator/mc13892-regulator.c | 13 +++++++++----
1 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
index 1b8f739..38e805d 100644
--- a/drivers/regulator/mc13892-regulator.c
+++ b/drivers/regulator/mc13892-regulator.c
@@ -537,8 +537,10 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev)

mc13xxx_lock(mc13892);
ret = mc13xxx_reg_read(mc13892, MC13892_REVISION, &val);
- if (ret)
+ if (ret) {
+ mc13xxx_unlock(mc13892);
goto err_free;
+ }

/* enable switch auto mode */
if ((val & 0x0000FFFF) == 0x45d0) {
@@ -547,16 +549,20 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev)
MC13892_SWITCHERS4_SW2MODE_M,
MC13892_SWITCHERS4_SW1MODE_AUTO |
MC13892_SWITCHERS4_SW2MODE_AUTO);
- if (ret)
+ if (ret) {
+ mc13xxx_unlock(mc13892);
goto err_free;
+ }

ret = mc13xxx_reg_rmw(mc13892, MC13892_SWITCHERS5,
MC13892_SWITCHERS5_SW3MODE_M |
MC13892_SWITCHERS5_SW4MODE_M,
MC13892_SWITCHERS5_SW3MODE_AUTO |
MC13892_SWITCHERS5_SW4MODE_AUTO);
- if (ret)
+ if (ret) {
+ mc13xxx_unlock(mc13892);
goto err_free;
+ }
}
mc13xxx_unlock(mc13892);

@@ -586,7 +592,6 @@ err:
regulator_unregister(priv->regulators[i]);

err_free:
- mc13xxx_unlock(mc13892);
kfree(priv);

return ret;
--
1.7.1



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