Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=23cebe2287474720c2eb0673581056cfb285a69f
Commit:     23cebe2287474720c2eb0673581056cfb285a69f
Parent:     7a5fe2387925405da0319330986184792ce48ad1
Author:     Haavard Skinnemoen <[EMAIL PROTECTED]>
AuthorDate: Fri Feb 16 13:19:47 2007 +0100
Committer:  Haavard Skinnemoen <[EMAIL PROTECTED]>
CommitDate: Fri Feb 16 13:19:47 2007 +0100

    [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: Haavard Skinnemoen <[EMAIL PROTECTED]>
---
 arch/avr32/mach-at32ap/clock.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/arch/avr32/mach-at32ap/clock.c b/arch/avr32/mach-at32ap/clock.c
index 3d0d109..49e7b12 100644
--- a/arch/avr32/mach-at32ap/clock.c
+++ b/arch/avr32/mach-at32ap/clock.c
@@ -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);
+               WARN_ON(1);
+               return;
+       }
 
        if (--clk->users == 0 && clk->mode)
                clk->mode(clk, 0);
-
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