ARM: ux500: add spin_unlock(&master_lock).

Add the missing spin_unlock statement to unlock
master_lock when prcmu_gic_decouple() return TRUE

Signed-off-by: steve zhan <zhanzhenbo@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/arch/arm/mach-ux500/cpuidle.c b/arch/arm/mach-ux500/cpuidle.c
index b54884bd254987f105d5f8ab0701b458ece1396e..ce9149302cc3c73f7f3247714d2791ff9770a4b4 100644 (file)
--- a/arch/arm/mach-ux500/cpuidle.c
+++ b/arch/arm/mach-ux500/cpuidle.c
@@ -40,8 +40,10 @@ static inline int ux500_enter_idle(struct cpuidle_device *dev,
                        goto wfi;
 
                /* decouple the gic from the A9 cores */
-               if (prcmu_gic_decouple())
+               if (prcmu_gic_decouple()) {
+                       spin_unlock(&master_lock);
                        goto out;
+               }
 
                /* If an error occur, we will have to recouple the gic
                 * manually */