[Cbe-oss-dev] [PATCH 2/2] Cell OProfile: SPU mutex lock fix, version 4

[Arnd Bergmann]

On Friday 01 August 2008, Carl Love wrote:
> If an error occurs on opcontrol start, the event and per cpu buffers 
> are released.  If later opcontrol shutdown is called then the free
> function will be called again to free buffers that no longer 
> exist.  This results in a kernel oops.  The following changes
> prevent the call to delete buffers that don't exist.
> 
> Signed-off-by: Carl Love <carll at us.ibm.com>
> 

vfree(NULL) is defined to be legal, so you don't need to check the
argument for being non-NULL, just set it to NULL after the free.

	Arnd <><