elm: fix dereferencing issue and add error handling and remove unreachable codes.

Summary:
I had fixed dereferencing issue and added chmod error handling(elm_code_file)
I had removed unreachable codes which remains after changing arguments initiallization(efl_ui_win)

Test Plan: Run unit test cases

Reviewers: eagleeye, Jaehyun_Cho, Hermet, zmike

Subscribers: cedric, #reviewers, #committers

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D7816

diff --git a/src/lib/elementary/elm_code_file.c b/src/lib/elementary/elm_code_file.c
index 1ca3e00..16c36cf 100644 (file)
--- a/src/lib/elementary/elm_code_file.c
+++ b/src/lib/elementary/elm_code_file.c
@@ -121,6 +121,8 @@ EAPI Elm_Code_File *elm_code_file_new(Elm_Code *code)
 
 EAPI Elm_Code_File *elm_code_file_open(Elm_Code *code, const char *path)
 {
+   EINA_SAFETY_ON_NULL_RETURN_VAL(code, NULL);
+
    Elm_Code_File *ret;
    Eina_File *file;
    Eina_File_Line *line;