Re: [PATCH v2] netfilter: Clean up tests if NULL returned on failure

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On Tue, Mar 28, 2017 at 7:24 PM, Jan Engelhardt <jengelh@xxxxxxx> wrote:
> On Tuesday 2017-03-28 15:13, simran singhal wrote:
>
>>Some functions like kmalloc/kzalloc return NULL on failure. When NULL
>>represents failure, !x is commonly used.
>>
>>@@ -910,7 +910,7 @@ ip_vs_new_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest,
>>       }
>>
>>       dest = kzalloc(sizeof(struct ip_vs_dest), GFP_KERNEL);
>>-      if (dest == NULL)
>>+      if (!dest)
>>               return -ENOMEM;
>
> This kind of transformation however is not cleanup anymore, it's really
> bikeshedding and should be avoided. There are pro and cons for both
> variants, and there is not really an overwhelming number of arguments
> for either variant to justify the change.

Sorry, but I didn't get what you are trying to convey. And particularly pros and
cons of both variants.
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