Sanjeev Premi e178ccb335 mfd: Fix mismatch in twl4030 mutex lock-unlock
A mutex is locked on entry into twl4030_madc_conversion().
Immediate return on some error conditions leaves the
mutex locked.

This patch ensures that mutex is always unlocked before
leaving the function.

Signed-off-by: Sanjeev Premi <premi@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-07-31 23:28:27 +02:00
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