1 files changed, 10 insertions, 0 deletions

diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c
index b7e46d5bba4..7b17137536d 100644
--- a/arch/sh/kernel/cpu/clock.c
+++ b/arch/sh/kernel/cpu/clock.c
@@ -117,6 +117,11 @@ int clk_enable(struct clk *clk)
         unsigned long flags;
         int ret;
 
+        if (!clk)
+                return -EINVAL;
+
+        clk_enable(clk->parent);
+
         spin_lock_irqsave(&clock_lock, flags);
         ret = __clk_enable(clk);
         spin_unlock_irqrestore(&clock_lock, flags);
@@ -147,9 +152,14 @@ void clk_disable(struct clk *clk)
 {
         unsigned long flags;
 
+        if (!clk)
+                return;
+
         spin_lock_irqsave(&clock_lock, flags);
         __clk_disable(clk);
         spin_unlock_irqrestore(&clock_lock, flags);
+
+        clk_disable(clk->parent);
 }
 EXPORT_SYMBOL_GPL(clk_disable);