Fix: Add pointer check when freeing poll events

[lttng-tools.git] / src / common / compat / poll.h

diff --git a/src/common/compat/poll.h b/src/common/compat/poll.h
index 46200ac3e313effea9c198ef0dd061008341133e..cfde4fc8381d36786f23683de1ffa7cc3f9e40f8 100644 (file)
--- a/src/common/compat/poll.h
+++ b/src/common/compat/poll.h
@@ -42,7 +42,9 @@ extern unsigned int poll_max_size;
  */
 static inline void __lttng_poll_free(void *events)
 {
-       free(events);
+       if (events) {
+               free(events);
+       }
 }
 
 /*
@@ -188,7 +190,7 @@ enum {
 #if __linux__
        LPOLLMSG = POLLMSG,
        LPOLLRDHUP = POLLRDHUP,
-#elif defined(__FreeBSD__)
+#elif (defined(__FreeBSD__) || defined(__CYGWIN__))
        LPOLLMSG = 0,
        LPOLLRDHUP = 0,
 #else