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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-03-28 12:17:02 +0300 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2017-03-30 18:38:34 +0300 |
| commit | aa9daa310dee3f86fa3a693fecd996a28d993cc6 (patch) | |
| tree | f836446def30f338b71352a526834ad242e6ec70 /arch/arm/mach-mmp | |
| parent | e1ffaa551cfbc5fc86bb6f40d41adb5e5106ab6c (diff) | |
| download | linux-aa9daa310dee3f86fa3a693fecd996a28d993cc6.tar.xz | |
ARM: mmp: let clk_disable() return immediately if clk is NULL
In many of clk_disable() implementations, it is a no-op for a NULL
pointer input, but this is one of the exceptions.
Making it treewide consistent will allow clock consumers to call
clk_disable() without NULL pointer check.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-mmp')
| -rw-r--r-- | arch/arm/mach-mmp/clock.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/clock.c b/arch/arm/mach-mmp/clock.c index ac6633d0b69b..28fe64c6e2f5 100644 --- a/arch/arm/mach-mmp/clock.c +++ b/arch/arm/mach-mmp/clock.c @@ -67,6 +67,9 @@ void clk_disable(struct clk *clk) { unsigned long flags; + if (!clk) + return; + WARN_ON(clk->enabled == 0); spin_lock_irqsave(&clocks_lock, flags); |