Re: [libvirt] [PATCH v2 25/41] util: usb: use VIR_AUTOPTR for aggregate types

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&gt; --- src/util/virusb.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/src/util/virusb.c b/src/util/virusb.c index 47b407b..df94959 100644 --- a/src/util/virusb.c +++ b/src/util/virusb.c @@ -123,8 +123,10 @@ virUSBDeviceSearch(unsigned int vendor, bool found = false; char *ignore = NULL; struct dirent *de; - virUSBDeviceListPtr list = NULL, ret = NULL; - virUSBDevicePtr usb; + virUSBDeviceListPtr list = NULL; + virUSBDeviceListPtr ret = NULL; + VIR_AUTOPTR(virUSBDevice) usb = NULL; + virUSBDevicePtr *ptr = NULL; int direrr; if (!(list = virUSBDeviceListNew())) @@ -173,13 +175,13 @@ virUSBDeviceSearch(unsigned int vendor, } usb = virUSBDeviceNew(found_bus, found_devno, vroot); + ptr = &usb;

+ if (!usb) goto cleanup; - if (virUSBDeviceListAdd(list, &usb) < 0) { - virUSBDeviceFree(usb); + if (virUSBDeviceListAdd(list, ptr) < 0) goto cleanup; - } if (found) break; @@ -508,8 +510,7 @@ void virUSBDeviceListDel(virUSBDeviceListPtr list, virUSBDevicePtr dev) { - virUSBDevicePtr ret = virUSBDeviceListSteal(list, dev); - virUSBDeviceFree(ret); + VIR_AUTOPTR(virUSBDevice) ret = virUSBDeviceListSteal(list, dev); } virUSBDevicePtr -- 1.8.3.1 -- libvir-list mailing list libvir-list(a)redhat.com https://www.redhat.com/mailman/listinfo/libvir-list