Commit 23cebe22 authored by Haavard Skinnemoen's avatar Haavard Skinnemoen

[AVR32] Warn, don't BUG if clk_disable is called too many times

Print a helpful warning along with a stack dump if clk_disable is
called on a already-disabled clock. Remove the BUG_ON().

Extracted from a patch by David Brownell.
Signed-off-by: default avatarHaavard Skinnemoen <>
parent 7a5fe238
......@@ -63,7 +63,11 @@ EXPORT_SYMBOL(clk_enable);
static void __clk_disable(struct clk *clk)
BUG_ON(clk->users == 0);
if (clk->users == 0) {
printk(KERN_ERR "%s: mismatched disable\n", clk->name);
if (--clk->users == 0 && clk->mode)
clk->mode(clk, 0);
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