1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/sh/clk/core.c b/drivers/sh/clk/core.c
index 6bf973bd9654..92863e3818e5 100644
--- a/drivers/sh/clk/core.c
+++ b/drivers/sh/clk/core.c
@@ -469,6 +469,9 @@ void clk_enable_init_clocks(void)
 
 unsigned long clk_get_rate(struct clk *clk)
 {
+        if (!clk)
+                return 0;
+
         return clk->rate;
 }
 EXPORT_SYMBOL_GPL(clk_get_rate);
@@ -478,6 +481,9 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
         int ret = -EOPNOTSUPP;
         unsigned long flags;
 
+        if (!clk)
+                return 0;
+
         spin_lock_irqsave(&clock_lock, flags);
 
         if (likely(clk->ops && clk->ops->set_rate)) {
@@ -535,12 +541,18 @@ EXPORT_SYMBOL_GPL(clk_set_parent);
 
 struct clk *clk_get_parent(struct clk *clk)
 {
+        if (!clk)
+                return NULL;
+
         return clk->parent;
 }
 EXPORT_SYMBOL_GPL(clk_get_parent);
 
 long clk_round_rate(struct clk *clk, unsigned long rate)
 {
+        if (!clk)
+                return 0;
+
         if (likely(clk->ops && clk->ops->round_rate)) {
                 unsigned long flags, rounded;