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: Haavard Skinnemoen <hskinnemoen@atmel.com>
static void __clk_disable(struct clk *clk)
{
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);
+ WARN_ON(1);
+ return;
+ }
if (--clk->users == 0 && clk->mode)
clk->mode(clk, 0);
if (--clk->users == 0 && clk->mode)
clk->mode(clk, 0);