These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / arch / arm / mach-davinci / clock.c

diff --git a/kernel/arch/arm/mach-davinci/clock.c b/kernel/arch/arm/mach-davinci/clock.c
index c70bb0a..3caff96 100644 (file)
--- a/kernel/arch/arm/mach-davinci/clock.c
+++ b/kernel/arch/arm/mach-davinci/clock.c
@@ -97,7 +97,9 @@ int clk_enable(struct clk *clk)
 {
        unsigned long flags;
 
-       if (clk == NULL || IS_ERR(clk))
+       if (!clk)
+               return 0;
+       else if (IS_ERR(clk))
                return -EINVAL;
 
        spin_lock_irqsave(&clockfw_lock, flags);
@@ -124,7 +126,7 @@ EXPORT_SYMBOL(clk_disable);
 unsigned long clk_get_rate(struct clk *clk)
 {
        if (clk == NULL || IS_ERR(clk))
-               return -EINVAL;
+               return 0;
 
        return clk->rate;
 }
@@ -159,8 +161,10 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
        unsigned long flags;
        int ret = -EINVAL;
 
-       if (clk == NULL || IS_ERR(clk))
-               return ret;
+       if (!clk)
+               return 0;
+       else if (IS_ERR(clk))
+               return -EINVAL;
 
        if (clk->set_rate)
                ret = clk->set_rate(clk, rate);
@@ -181,7 +185,9 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
 {
        unsigned long flags;
 
-       if (clk == NULL || IS_ERR(clk))
+       if (!clk)
+               return 0;
+       else if (IS_ERR(clk))
                return -EINVAL;
 
        /* Cannot change parent on enabled clock */