[PATCH 1/1] winspool: Fix crash when dmSize is 0

[Tingzhong Luo]

From: Tingzhong Luo

---
 dlls/winspool.drv/info.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/winspool.drv/info.c b/dlls/winspool.drv/info.c
index 61017104ab1..7b09799d1db 100644
--- a/dlls/winspool.drv/info.c
+++ b/dlls/winspool.drv/info.c
@@ -241,7 +241,7 @@ static DEVMODEA *DEVMODEWtoA( const DEVMODEW *dmW, DEVMODEA *dmA )
 {
     DWORD size, sizeW;

-    if (!dmW) return NULL;
+    if (!dmW || dmW->dmSize <= 0) return NULL;
     sizeW = dmW->dmSize;
     size = sizeW - CCHDEVICENAME -
                         ((sizeW > FIELD_OFFSET( DEVMODEW, dmFormName )) ? CCHFORMNAME : 0);