kernel32: Check for a valid pointer before yanking the line

[Hugh McMaster]

Fixes bug 41733.

Signed-off-by: Hugh McMaster <hugh.mcmaster at outlook.com>
---
 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)
-- 
2.7.4