osmo_mslookup_server_mdns_rx(): handle read() rc == 0
Coverity says "tainted buffer", I hope it means the case of read() returning
zero.
Related: coverity CID#210170
Change-Id: Ia2d57cb8bbacc6f54dc410047da69a983aedd24d
diff --git a/src/mslookup_server_mdns.c b/src/mslookup_server_mdns.c
index 0e94074..a669526 100644
--- a/src/mslookup_server_mdns.c
+++ b/src/mslookup_server_mdns.c
@@ -71,7 +71,7 @@
/* Parse the message and print it */
n = read(osmo_fd->fd, buffer, sizeof(buffer));
- if (n < 0)
+ if (n <= 0)
return n;
ctx = talloc_named_const(server, 0, __func__);