riched20: Check para before use in ME_PrevRun.

Signed-off-by: Jactry Zeng <jzeng@codeweavers.com> Signed-off-by: Huw Davies <huw@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

riched20: Check para before use in ME_PrevRun.
ea718634 · Jactry Zeng · Alexandre Julliard · 3f281a3b · ea718634
Commit ea718634 authored Apr 13, 2018 by Jactry Zeng Committed by Alexandre Julliard Apr 16, 2018
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list.c dlls/riched20/list.c +1 -1

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--- a/dlls/riched20/list.c
+++ b/dlls/riched20/list.c
@@ -97,7 +97,7 @@ BOOL ME_PrevRun(ME_DisplayItem **para, ME_DisplayItem **run, BOOL all_para)
  {
    if (p->type == diParagraph) {
      if (!all_para) return FALSE;
-      if (p->member.para.prev_para->type == diParagraph)
+      if (para && p->member.para.prev_para->type == diParagraph)
        *para = p->member.para.prev_para;
    } else if (p->type == diRun) {
      *run = p;