1 files changed, 2 insertions, 1 deletions
diff --git a/src/utils.c b/src/utils.c
index c9a1463..0979622 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -747,7 +747,8 @@ static int cgroups_write_file(const char *cdir, const char *csub,
                 value, cdir, csub);
             s = 1;
         }
-        close(fd);
+        if (fd >= 0)
+            close(fd);
     }
 
     return s;