Messages in this thread | | | Date | Mon, 01 Jan 2007 10:05:58 +0900 (JST) | Subject | Re: [PATCH] [DISCUSS] Make the variable NULL after freeing it. | From | YOSHIFUJI Hideaki / 吉藤英明 <> |
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In article <200701010143.02870.ioe-lkml@rameria.de> (at Mon, 1 Jan 2007 01:43:00 +0100), Ingo Oeser <ioe-lkml@rameria.de> says:
> On Sunday, 31. December 2006 14:38, Bernd Petrovitsch wrote: > > That depends on the decision/definition if (so called) "double free" is > > an error or not (and "free(NULL)" must work in POSIX-compliant > > environments). > > A double free of non-NULL is certainly an error. > So the idea of setting it to NULL is ok, since then you can > kfree the variable over and over again without any harm.
I dislike (or, say, I hate) this idea; people should fix up such broken code paths.
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