diff options
| author | Mike Travis <travis@sgi.com> | 2008-12-31 17:34:16 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-03 18:53:31 +0100 |
| commit | 7eb19553369c46cc1fa64caf120cbcab1b597f7c (patch) | |
| tree | ef1a3beae706b9497c845d0a2557ceb4d2754998 /arch/sh/kernel/cpu/clock.c | |
| parent | 6092848a2a23b660150a38bc06f59d75838d70c8 (diff) | |
| parent | 8c384cdee3e04d6194a2c2b192b624754f990835 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into merge-rr-cpumask
Conflicts:
arch/x86/kernel/io_apic.c
kernel/rcuclassic.c
kernel/sched.c
kernel/time/tick-sched.c
Signed-off-by: Mike Travis <travis@sgi.com>
[ mingo@elte.hu: backmerged typo fix for io_apic.c ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sh/kernel/cpu/clock.c')
| -rw-r--r-- | arch/sh/kernel/cpu/clock.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c index b7e46d5bba43..7b17137536d6 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); |