From accce8e7e8b769ec2430bc0f4a8a2b23c68c1837 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Wed, 3 May 2017 14:51:35 -0700 Subject: [PATCH] blackfin: bf609: 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. Link: http://lkml.kernel.org/r/1490692624-11931-4-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada Cc: Stephen Boyd Cc: Ralf Baechle Cc: Michael Turquette Cc: Steven Miao Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/blackfin/mach-bf609/clock.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/blackfin/mach-bf609/clock.c b/arch/blackfin/mach-bf609/clock.c index 378305844b2c..392a59b9a504 100644 --- a/arch/blackfin/mach-bf609/clock.c +++ b/arch/blackfin/mach-bf609/clock.c @@ -97,6 +97,9 @@ EXPORT_SYMBOL(clk_enable); void clk_disable(struct clk *clk) { + if (!clk) + return; + if (clk->ops && clk->ops->disable) clk->ops->disable(clk); } -- GitLab