xenstore: correct test for opened logfile in reopen_log()

As 0 is a valid file descriptor testing a descriptor to be valid
should be done via >= 0 instead of > 0.

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>

diff --git a/tools/xenstore/xenstored_core.c b/tools/xenstore/xenstored_core.c
index 1e9b62280b4408067132c3608499bfa1960bccaf..7b16338d8256f4d3f80928e97f870ea2e580d444 100644 (file)
--- a/tools/xenstore/xenstored_core.c
+++ b/tools/xenstore/xenstored_core.c
@@ -209,7 +209,7 @@ static void trigger_reopen_log(int signal __attribute__((unused)))
 static void reopen_log(void)
 {
        if (tracefile) {
-               if (tracefd > 0)
+               if (tracefd >= 0)
                        close(tracefd);
 
                tracefd = open(tracefile, O_WRONLY|O_CREAT|O_APPEND, 0600);