commit 960dcbd098c761dd623bec9492d5391ff6e8dceb
author Yegappan Lakshmanan <yegappan@yahoo.com> Tue Mar 07 17:45:11 2023 +0000
committer Bram Moolenaar <Bram@vim.org> Tue Mar 07 17:45:11 2023 +0000
tree df2abb6d73be0c31de679fa00251e133a0e99ab6
parent 14113fdf9cb3d588c0d1c3a210246b981cf5aad3

patch 9.0.1391: "clear" macros are not always used

Problem:    "clear" macros are not always used.
Solution:   Use ALLOC_ONE, VIM_CLEAR, CLEAR_POINTER and CLEAR_FIELD in more
            places. (Yegappan Lakshmanan, closes #12104)

src/diff.c

diff --git a/src/diff.c b/src/diff.c
index 6c13d2a..a46f0bf 100644
--- a/src/diff.c
+++ b/src/diff.c
@@ -726,10 +726,7 @@
 clear_diffin(diffin_T *din)
 {
     if (din->din_fname == NULL)
-    {
-	vim_free(din->din_mmfile.ptr);
-	din->din_mmfile.ptr = NULL;
-    }
+	VIM_CLEAR(din->din_mmfile.ptr);
     else
 	mch_remove(din->din_fname);
 }