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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2009-01-22 16:08:04 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-02-08 17:50:12 +0000
commitdbb674d57b5851a4fe3122ff4280e4cf87209198 (patch)
tree9cb4c4fba2c6ce395308dc696a06082f2ea5183a /arch/arm/plat-omap
parent1e98ffa85e70f423e2e41156cc3d549c353cd897 (diff)
[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 <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/plat-omap')
-rw-r--r--arch/arm/plat-omap/clock.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index df58f5d9a5a..6b3ef2a0b04 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)