modules/luci-mod-failsafe: Fix nil file descriptor error

Signed-off-by: Ekaitz Zárraga <ekaitz.zarraga@fon.com>

diff --git a/modules/luci-mod-failsafe/luasrc/controller/failsafe/failsafe.lua b/modules/luci-mod-failsafe/luasrc/controller/failsafe/failsafe.lua
index 6f78643..60caadb 100644 (file)
--- a/modules/luci-mod-failsafe/luasrc/controller/failsafe/failsafe.lua
+++ b/modules/luci-mod-failsafe/luasrc/controller/failsafe/failsafe.lua
@@ -84,11 +84,13 @@ function action_flashops()
                                        fp = io.open(image_tmp, "w")
                                end
                        end
-                       if chunk then
-                               fp:write(chunk)
-                       end
-                       if eof then
-                               fp:close()
+                       if fp then
+                               if chunk then
+                                       fp:write(chunk)
+                               end
+                               if eof then
+                                       fp:close()
+                               end
                        end
                end
        )