[libvirt] [PATCH] Replace 'goto err' with 'goto cleanup' in udev interface driver
From: "Daniel P. Berrange" <berrange@redhat.com> The udev interface driver did not follow standard naming convention for goto labels. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> --- src/interface/interface_backend_udev.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/src/interface/interface_backend_udev.c b/src/interface/interface_backend_udev.c index 1c47e5c..f9a179f 100644 --- a/src/interface/interface_backend_udev.c +++ b/src/interface/interface_backend_udev.c @@ -112,21 +112,21 @@ udevInterfaceOpen(virConnectPtr conn, if (VIR_ALLOC(driverState) < 0) { virReportOOMError(); - goto err; + goto cleanup; } driverState->udev = udev_new(); if (!driverState->udev) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("failed to create udev context")); - goto err; + goto cleanup; } conn->interfacePrivateData = driverState; return VIR_DRV_OPEN_SUCCESS; -err: +cleanup: VIR_FREE(driverState); return VIR_DRV_OPEN_ERROR; @@ -166,7 +166,7 @@ udevNumOfInterfacesByStatus(virConnectPtr conn, virUdevStatus status) _("failed to get number of %s interfaces on host"), virUdevStatusString(status)); count = -1; - goto err; + goto cleanup; } /* Do the scan to load up the enumeration */ @@ -180,7 +180,7 @@ udevNumOfInterfacesByStatus(virConnectPtr conn, virUdevStatus status) count++; } -err: +cleanup: if (enumerate) udev_enumerate_unref(enumerate); udev_unref(udev); @@ -207,7 +207,7 @@ udevListInterfacesByStatus(virConnectPtr conn, virReportError(VIR_ERR_INTERNAL_ERROR, _("failed to get list of %s interfaces on host"), virUdevStatusString(status)); - goto err; + goto error; } /* Do the scan to load up the enumeration */ @@ -229,7 +229,7 @@ udevListInterfacesByStatus(virConnectPtr conn, dev = udev_device_new_from_syspath(udev, path); if (VIR_STRDUP(names[count], udev_device_get_sysname(dev)) < 0) { udev_device_unref(dev); - goto err; + goto error; } udev_device_unref(dev); @@ -241,7 +241,7 @@ udevListInterfacesByStatus(virConnectPtr conn, return count; -err: +error: if (enumerate) udev_enumerate_unref(enumerate); udev_unref(udev); @@ -422,14 +422,14 @@ udevInterfaceLookupByName(virConnectPtr conn, const char *name) virReportError(VIR_ERR_NO_INTERFACE, _("couldn't find interface named '%s'"), name); - goto err; + goto cleanup; } macaddr = udev_device_get_sysattr_value(dev, "address"); ret = virGetInterface(conn, name, macaddr); udev_device_unref(dev); -err: +cleanup: udev_unref(udev); return ret; @@ -452,7 +452,7 @@ udevInterfaceLookupByMACString(virConnectPtr conn, const char *macstr) virReportError(VIR_ERR_INTERNAL_ERROR, _("failed to lookup interface with MAC address '%s'"), macstr); - goto err; + goto cleanup; } /* Match on MAC */ @@ -469,7 +469,7 @@ udevInterfaceLookupByMACString(virConnectPtr conn, const char *macstr) virReportError(VIR_ERR_NO_INTERFACE, _("couldn't find interface with MAC address '%s'"), macstr); - goto err; + goto cleanup; } /* Check that we didn't get multiple items back */ @@ -477,7 +477,7 @@ udevInterfaceLookupByMACString(virConnectPtr conn, const char *macstr) virReportError(VIR_ERR_MULTIPLE_INTERFACES, _("the MAC address '%s' matches multiple interfaces"), macstr); - goto err; + goto cleanup; } dev = udev_device_new_from_syspath(udev, udev_list_entry_get_name(dev_entry)); @@ -485,7 +485,7 @@ udevInterfaceLookupByMACString(virConnectPtr conn, const char *macstr) ret = virGetInterface(conn, name, macstr); udev_device_unref(dev); -err: +cleanup: if (enumerate) udev_enumerate_unref(enumerate); udev_unref(udev); @@ -1043,13 +1043,13 @@ udevInterfaceGetXMLDesc(virInterfacePtr ifinfo, ifacedef = udevGetIfaceDef(udev, ifinfo->name); if (!ifacedef) - goto err; + goto cleanup; xmlstr = virInterfaceDefFormat(ifacedef); virInterfaceDefFree(ifacedef); -err: +cleanup: /* decrement our udev ptr */ udev_unref(udev); -- 1.8.1.4
On 09.05.2013 15:02, Daniel P. Berrange wrote:
From: "Daniel P. Berrange" <berrange@redhat.com>
The udev interface driver did not follow standard naming convention for goto labels.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com> --- src/interface/interface_backend_udev.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-)
Do we want to bother with udevConnectListAllInterfaces? The 'cleanup' label makes a tiny bit of sense although I'd vote for 'error'. However, in: udevGetIfaceDefBond udevGetIfaceDefVlan udevGetIfaceDef s/cleanup/error/ shall be made. But this patch is good as-is. ACK if you reconsider extending this patch to functions I've pointed out. Michal
On Thu, May 09, 2013 at 03:20:54PM +0200, Michal Privoznik wrote:
On 09.05.2013 15:02, Daniel P. Berrange wrote:
From: "Daniel P. Berrange" <berrange@redhat.com>
The udev interface driver did not follow standard naming convention for goto labels.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com> --- src/interface/interface_backend_udev.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-)
Do we want to bother with udevConnectListAllInterfaces? The 'cleanup' label makes a tiny bit of sense although I'd vote for 'error'.
However, in: udevGetIfaceDefBond udevGetIfaceDefVlan udevGetIfaceDef
s/cleanup/error/ shall be made.
But this patch is good as-is. ACK if you reconsider extending this patch to functions I've pointed out.
I'll push a fix for those cases too. Separated return paths should always use 'error' rather than 'cleanup' Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
participants (2)
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Daniel P. Berrange -
Michal Privoznik