ioctl returns -1, not the errno value
---
src/util/virnetdevtap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/util/virnetdevtap.c b/src/util/virnetdevtap.c
index 0b444fa..d64e64f 100644
--- a/src/util/virnetdevtap.c
+++ b/src/util/virnetdevtap.c
@@ -294,7 +294,7 @@ int virNetDevTapCreate(char **ifname,
}
if ((flags & VIR_NETDEV_TAP_CREATE_PERSIST) &&
- (errno = ioctl(fd, TUNSETPERSIST, 1))) {
+ ioctl(fd, TUNSETPERSIST, 1) < 0) {
virReportSystemError(errno,
_("Unable to set tap device %s to
persistent"),
NULLSTR(*ifname));
--
1.8.5.5
--
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