Re: [PATCH v2 1/2] qemu: parse: Use qemuParseCommandLineMem for -m memory

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On 05/18/2016 02:36 AM, Nishith Shah wrote:
> Move the parsing of -m memory to a new function, qemuParseCommandLineMem
> 
> Signed-off-by: Nishith Shah <nishithshah.2211@xxxxxxxxx>
> ---
>  src/qemu/qemu_parse_command.c | 30 +++++++++++++++++++++++-------
>  1 file changed, 23 insertions(+), 7 deletions(-)
> 
> diff --git a/src/qemu/qemu_parse_command.c b/src/qemu/qemu_parse_command.c
> index e30586f..334dcf8 100644
> --- a/src/qemu/qemu_parse_command.c
> +++ b/src/qemu/qemu_parse_command.c
> @@ -1633,6 +1633,28 @@ qemuParseCommandLineCPU(virDomainDefPtr dom,
>  
>  
>  static int
> +qemuParseCommandLineMem(virDomainDefPtr dom,
> +                        const char *val)
> +{
> +    unsigned long long mem;
> +    char *end;
> +    if (virStrToLong_ull(val, &end, 10, &mem) < 0) {
> +        virReportError(VIR_ERR_INTERNAL_ERROR,
> +                       _("cannot parse memory level '%s'"), val);
> +        goto error;
> +    }
> +
> +    virDomainDefSetMemoryTotal(dom, mem * 1024);
> +    dom->mem.cur_balloon = mem * 1024;
> +
> +    return 0;
> +
> + error:
> +    return -1;
> +}
> +

Typically when we use the 'goto error' pattern, what we do is:

    int ret = -1;

    if (condition)
        goto error;

    ret = 0;
 error:
    return ret;

So there's only one 'return'

That said, in this function there isn't any special error handling, so I
suggest dropping the 'error' label entirely and just 'return -1' at the goto
error calls

Thanks,
Cole

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