On Tue, Jul 24, 2018 at 09:22:29PM +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 <skrtbht...@gmail.com>
> Reviewed-by: Erik Skultety <eskul...@redhat.com>
> ---
> src/util/virscsi.c | 37 +++++++++++++++----------------------
> 1 file changed, 15 insertions(+), 22 deletions(-)
>
> diff --git a/src/util/virscsi.c b/src/util/virscsi.c
> index ba0a688..f97f6b5 100644
> --- a/src/util/virscsi.c
> +++ b/src/util/virscsi.c
> @@ -189,7 +189,8 @@ virSCSIDeviceNew(const char *sysfs_prefix,
> bool readonly,
> bool shareable)
> {
> - virSCSIDevicePtr dev, ret = NULL;
> + VIR_AUTOPTR(virSCSIDevice) dev = NULL;
> + virSCSIDevicePtr ret = NULL;
> VIR_AUTOFREE(char *) sg = NULL;
> VIR_AUTOFREE(char *) vendor_path = NULL;
> VIR_AUTOFREE(char *) model_path = NULL;
> @@ -207,46 +208,43 @@ virSCSIDeviceNew(const char *sysfs_prefix,
> dev->shareable = shareable;
>
> if (!(sg = virSCSIDeviceGetSgName(prefix, adapter, bus, target, unit)))
> - goto cleanup;
> + return NULL;
>
> if (virSCSIDeviceGetAdapterId(adapter, &dev->adapter) < 0)
> - goto cleanup;
> + return NULL;
>
> if (virAsprintf(&dev->name, "%d:%u:%u:%llu", dev->adapter,
> dev->bus, dev->target, dev->unit) < 0 ||
> virAsprintf(&dev->sg_path, "%s/%s",
> sysfs_prefix ? sysfs_prefix : "/dev", sg) < 0)
> - goto cleanup;
> + return NULL;
>
> if (!virFileExists(dev->sg_path)) {
> virReportSystemError(errno,
> _("SCSI device '%s': could not access %s"),
> dev->name, dev->sg_path);
> - goto cleanup;
> + return NULL;
> }
>
> if (virAsprintf(&vendor_path,
> "%s/%s/vendor", prefix, dev->name) < 0 ||
> virAsprintf(&model_path,
> "%s/%s/model", prefix, dev->name) < 0)
> - goto cleanup;
> + return NULL;
>
> if (virFileReadAll(vendor_path, 1024, &vendor) < 0)
> - goto cleanup;
> + return NULL;
>
> if (virFileReadAll(model_path, 1024, &model) < 0)
> - goto cleanup;
> + return NULL;
>
> virTrimSpaces(vendor, NULL);
> virTrimSpaces(model, NULL);
>
> if (virAsprintf(&dev->id, "%s:%s", vendor, model) < 0)
> - goto cleanup;
> + return NULL;
>
> - ret = dev;
> - cleanup:
> - if (!ret)
> - virSCSIDeviceFree(dev);
> + VIR_STEAL_PTR(ret, dev);
> return ret;
> }
>
> @@ -281,21 +279,17 @@ virSCSIDeviceSetUsedBy(virSCSIDevicePtr dev,
> const char *drvname,
> const char *domname)
> {
> - virUsedByInfoPtr copy;
> + VIR_AUTOPTR(virUsedByInfo) copy = NULL;
I'll add a new line ^here before merging.
Erik
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