diff options
Diffstat (limited to 'arch/sh/kernel/cpu/clock.c')
| -rw-r--r-- | arch/sh/kernel/cpu/clock.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c index f5eb56e6bc5..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); @@ -294,9 +304,10 @@ arch_init_clk_ops(struct clk_ops **ops, int type) { } -void __init __attribute__ ((weak)) +int __init __attribute__ ((weak)) arch_clk_init(void) { + return 0; } static int show_clocks(char *buf, char **start, off_t off, @@ -331,7 +342,7 @@ int __init clk_init(void) ret |= clk_register(clk); } - arch_clk_init(); + ret |= arch_clk_init(); /* Kick the child clocks.. */ propagate_rate(&master_clk); |