Re: [PATCH 2/2] Cell OProfile: SPU mutex lock fix, version 4

Arnd Bergmann
2008-08-08T13:26:41Z

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@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.