Messages in this thread | | | Date | Thu, 21 Dec 2006 15:41:27 -0800 (PST) | From | Amit Choudhary <> | Subject | [PATCH] [DISCUSS] Make the variable NULL after freeing it. |
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Hi,
Was just wondering if the _var_ in kfree(_var_) could be set to NULL after its freed. It may solve the problem of accessing some freed memory as the kernel will crash since _var_ was set to NULL.
Does this make sense? If yes, then how about renaming kfree to something else and providing a kfree macro that would do the following:
#define kfree(x) do { \ new_kfree(x); \ x = NULL; \ } while(0)
There might be other better ways too.
Regards, Amit
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