On Mon, 13 Aug 2018 at 18:10, Erik Skultety <eskultet(a)redhat.com> wrote:
On Thu, Aug 09, 2018 at 09:42:12AM +0530, Sukrit Bhatnagar wrote:
> By making use of GNU C's cleanup attribute handled by the
> VIR_AUTOPTR macro for declaring aggregate pointer variables,
> majority of the calls to *Free functions can be dropped, which
> in turn leads to getting rid of most of our cleanup sections.
>
> Signed-off-by: Sukrit Bhatnagar <skrtbhtngr(a)gmail.com>
> ---
> src/util/virnetlink.c | 72 ++++++++++++++++++++-------------------------------
> 1 file changed, 28 insertions(+), 44 deletions(-)
>
> diff --git a/src/util/virnetlink.c b/src/util/virnetlink.c
> index fcdc09d..66e80e2 100644
> --- a/src/util/virnetlink.c
> +++ b/src/util/virnetlink.c
> @@ -297,15 +297,16 @@ int virNetlinkCommand(struct nl_msg *nl_msg,
> uint32_t src_pid, uint32_t dst_pid,
> unsigned int protocol, unsigned int groups)
> {
> - int ret = -1;
> struct sockaddr_nl nladdr = {
> .nl_family = AF_NETLINK,
> .nl_pid = dst_pid,
> .nl_groups = 0,
> };
> struct pollfd fds[1];
> - VIR_AUTOPTR(virNetlinkHandle) nlhandle = NULL;
> int len = 0;
> + VIR_AUTOPTR(virNetlinkHandle) nlhandle = NULL;
unjustified code movement...
> +
> + *respbuflen = 0;
unnecessary initialization..
We need *respbuflen to be 0 if -1 is returned. So if this initialization is
removed, we need to add `*respbuflen = 0;` in the cleanup section below.
> memset(fds, 0, sizeof(fds));
>
> @@ -324,15 +325,12 @@ int virNetlinkCommand(struct nl_msg *nl_msg,
> goto cleanup;
> }
>
> - ret = 0;
> *respbuflen = len;
> - cleanup:
> - if (ret < 0) {
> - *resp = NULL;
> - *respbuflen = 0;
> - }
> + return 0;
>
> - return ret;
> + cleanup:
> + *resp = NULL;
> + return -1;
I moved ^this hunk into the previous patch as I converted 1 more var into
VIR_AUTOFREE.
Reviewed-by: Erik Skultety <eskultet(a)redhat.com>