From dbb674d57b5851a4fe3122ff4280e4cf87209198 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 22 Jan 2009 16:08:04 +0000 Subject: [ARM] omap: allow double-registering of clocks This stops things blowing up if a 'struct clk' to be passed more than once to clk_register(), which will be required when we decouple struct clk's from their names. Signed-off-by: Russell King --- arch/arm/plat-omap/clock.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/arm/plat-omap/clock.c') diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c index df58f5d9a5ab..6b3ef2a0b04e 100644 --- a/arch/arm/plat-omap/clock.c +++ b/arch/arm/plat-omap/clock.c @@ -292,6 +292,12 @@ int clk_register(struct clk *clk) if (clk == NULL || IS_ERR(clk)) return -EINVAL; + /* + * trap out already registered clocks + */ + if (clk->node.next || clk->node.prev) + return 0; + mutex_lock(&clocks_mutex); list_add(&clk->node, &clocks); if (clk->init) -- cgit v1.2.3-59-g8ed1b