1 files changed, 2 insertions, 1 deletions
diff --git a/mdstat.c b/mdstat.c
index 2fd792c..e233f09 100644
--- a/mdstat.c
+++ b/mdstat.c
@@ -348,7 +348,8 @@ void mdstat_wait_fd(int fd, const sigset_t *sigmask)
 
 	if (fd >= 0) {
 		struct stat stb;
-		fstat(fd, &stb);
+		if (fstat(fd, &stb) != 0)
+			return;
 		if ((stb.st_mode & S_IFMT) == S_IFREG)
 			/* Must be a /proc or /sys fd, so expect
 			 * POLLPRI