Since NULL is used as valid clock object on optional clocks we have to handle
this case in avr32 implementation as well.
Fixes:
e1824dfe0d8e (net: macb: Adjust tx_clk when link speed changes)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
+ if (!clk)
+ return 0;
+
spin_lock_irqsave(&clk_lock, flags);
__clk_enable(clk);
spin_unlock_irqrestore(&clk_lock, flags);
spin_lock_irqsave(&clk_lock, flags);
__clk_enable(clk);
spin_unlock_irqrestore(&clk_lock, flags);
+ if (IS_ERR_OR_NULL(clk))
+ return;
+
spin_lock_irqsave(&clk_lock, flags);
__clk_disable(clk);
spin_unlock_irqrestore(&clk_lock, flags);
spin_lock_irqsave(&clk_lock, flags);
__clk_disable(clk);
spin_unlock_irqrestore(&clk_lock, flags);
unsigned long flags;
unsigned long rate;
unsigned long flags;
unsigned long rate;
+ if (!clk)
+ return 0;
+
spin_lock_irqsave(&clk_lock, flags);
rate = clk->get_rate(clk);
spin_unlock_irqrestore(&clk_lock, flags);
spin_lock_irqsave(&clk_lock, flags);
rate = clk->get_rate(clk);
spin_unlock_irqrestore(&clk_lock, flags);
{
unsigned long flags, actual_rate;
{
unsigned long flags, actual_rate;
+ if (!clk)
+ return 0;
+
if (!clk->set_rate)
return -ENOSYS;
if (!clk->set_rate)
return -ENOSYS;
unsigned long flags;
long ret;
unsigned long flags;
long ret;
+ if (!clk)
+ return 0;
+
if (!clk->set_rate)
return -ENOSYS;
if (!clk->set_rate)
return -ENOSYS;
unsigned long flags;
int ret;
unsigned long flags;
int ret;
+ if (!clk)
+ return 0;
+
if (!clk->set_parent)
return -ENOSYS;
if (!clk->set_parent)
return -ENOSYS;
struct clk *clk_get_parent(struct clk *clk)
{
struct clk *clk_get_parent(struct clk *clk)
{
+ return !clk ? NULL : clk->parent;
}
EXPORT_SYMBOL(clk_get_parent);
}
EXPORT_SYMBOL(clk_get_parent);