Re: [libvirt PATCH 04/19] commandhelper: Consolidate error paths

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On Fri, Jan 29, 2021 at 17:16:14 +0100, Tim Wiederhake wrote:
> Preparation for later conversion to g_auto* memory handling.
> 
> Signed-off-by: Tim Wiederhake <twiederh@xxxxxxxxxx>
> ---
>  tests/commandhelper.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/tests/commandhelper.c b/tests/commandhelper.c
> index 05e3879688..2be121ce2c 100644
> --- a/tests/commandhelper.c
> +++ b/tests/commandhelper.c
> @@ -61,7 +61,7 @@ int main(int argc, char **argv) {
>      ssize_t got;
>  
>      if (!log)
> -        return ret;
> +        goto cleanup;
>  
>      for (i = 1; i < argc; i++) {
>          fprintf(log, "ARG:%s\n", argv[i]);
> @@ -79,7 +79,7 @@ int main(int argc, char **argv) {
>      }
>  
>      if (!(newenv = malloc(sizeof(*newenv) * n)))
> -        abort();
> +        goto cleanup;

Any reason for not converting this malloc to g_new directly? you get rid
of abort()/cleanup entirely.

Especially since the patches at the end of the series switch to
g_auto(ptr).

If there's a strong reason against using glibs allocators, in such case
the cleanups shouldn't be added either.

>  
>      for (i = 0; i < n; i++) {
>          newenv[i] = environ[i];
> @@ -222,8 +222,10 @@ int main(int argc, char **argv) {
>   cleanup:
>      for (i = 0; i < G_N_ELEMENTS(buffers); i++)
>          free(buffers[i]);
> -    fclose(log);
> -    free(newenv);
> +    if (newenv)
> +        free(newenv);
> +    if (log)
> +        fclose(log);
>      return ret;
>  }
>  
> -- 
> 2.26.2
> 




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