[libvirt] [PATCH] nodeinfo: Check for SYSFS_INFINIBAND_DIR before open

Commit id 'ac3ed2085' causes 'virsh nodedev-list --cap net' to fail on any system without SYSFS_INFINIBAND_DIR (/sys/class/infiniband). Rather than assume it's there and fail on the attempt to open the non-existent directory, check if it's there - if not, return success and move on. As reported by Suren Hajyan <shajyan(a)redhat.com&gt; from run of unit tests Signed-off-by: John Ferlan <jferlan(a)redhat.com&gt; --- src/util/virnetdev.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/util/virnetdev.c b/src/util/virnetdev.c index 7d91e2c..eb6a9fb 100644 --- a/src/util/virnetdev.c +++ b/src/util/virnetdev.c @@ -2976,6 +2976,9 @@ virNetDevRDMAFeature(const char *ifname, struct dirent *dp; int ret = -1; + if (!virFileExists(SYSFS_INFINIBAND_DIR)) + return 0; + if (!(dirp = opendir(SYSFS_INFINIBAND_DIR))) { virReportSystemError(errno, _("Failed to opendir path '%s'"), -- 2.1.0