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patch 8.0.0782: using freed memory in quickfix code

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Problem:    Using freed memory in quickfix code. (Dominique Pelle)
Solution:   Handle a help window differently. (Yegappan Lakshmanan)
This commit is contained in:
Bram Moolenaar
2017-07-27 22:03:50 +02:00
parent ab6eec3887
commit d28cc3f55d
7 changed files with 44 additions and 14 deletions
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6
src/ex_cmds.c
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@@ -6314,7 +6314,7 @@ ex_help(exarg_T *eap)
* Re-use an existing help window or open a new one.
* Always open a new one for ":tab help".
*/
if (!curwin->w_buffer->b_help
if (!bt_help(curwin->w_buffer)
#ifdef FEAT_WINDOWS
|| cmdmod.tab != 0
#endif
@@ -6325,7 +6325,7 @@ ex_help(exarg_T *eap)
wp = NULL;
else
FOR_ALL_WINDOWS(wp)
if (wp->w_buffer != NULL && wp->w_buffer->b_help)
if (bt_help(wp->w_buffer))
break;
if (wp != NULL && wp->w_buffer->b_nwindows > 0)
win_enter(wp, TRUE);
@@ -6425,7 +6425,7 @@ ex_helpclose(exarg_T *eap UNUSED)
FOR_ALL_WINDOWS(win)
{
if (win->w_buffer->b_help)
if (bt_help(win->w_buffer))
{
win_close(win, FALSE);
return;