Hugh McMaster : kernel32: Check for a valid pointer before yanking the line.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 8cacba5ff942ee91124895bb10fec026556cdf6f
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=8cacba5ff942ee91124895bb10fec026556cdf6f

Author: Hugh McMaster <hugh.mcmaster at outlook.com>
Date:   Tue Dec 13 12:00:03 2016 +0000

kernel32: Check for a valid pointer before yanking the line.

Signed-off-by: Hugh McMaster <hugh.mcmaster at outlook.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/kernel32/editline.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/kernel32/editline.c b/dlls/kernel32/editline.c
index 415f28e..6c0b8eb 100644
--- a/dlls/kernel32/editline.c
+++ b/dlls/kernel32/editline.c
@@ -636,7 +636,8 @@ static void WCEL_CapitalizeWord(WCEL_Context* ctx)
 
 static void WCEL_Yank(WCEL_Context* ctx)
 {
-    WCEL_InsertString(ctx, ctx->yanked);
+    if (ctx->yanked)
+        WCEL_InsertString(ctx, ctx->yanked);
 }
 
 static void WCEL_KillToEndOfLine(WCEL_Context* ctx)