[PATCH] CID495: dereference pointer after NULL check

[Marcus Meissner]

Coverity spotted that we dereference pdidoi before
checking it for NULL. Fixed.

Ciao, Marcus
---
 dlls/dinput/device.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/dlls/dinput/device.c b/dlls/dinput/device.c
index 3a32ca5..ee3832b 100644
--- a/dlls/dinput/device.c
+++ b/dlls/dinput/device.c
@@ -955,7 +955,7 @@ HRESULT WINAPI IDirectInputDevice2WImpl_
 	DWORD dwHow)
 {
     IDirectInputDevice2AImpl *This = (IDirectInputDevice2AImpl *)iface;
-    DWORD dwSize = pdidoi->dwSize;
+    DWORD dwSize;
     LPDIOBJECTDATAFORMAT odf;
     int idx = -1;
 
@@ -990,6 +990,7 @@ HRESULT WINAPI IDirectInputDevice2WImpl_
     if (idx < 0) return DIERR_OBJECTNOTFOUND;
 
     odf = dataformat_to_odf(This->data_format.wine_df, idx);
+    dwSize = pdidoi->dwSize; /* save due to memset below */
     memset(pdidoi, 0, pdidoi->dwSize);
     pdidoi->dwSize   = dwSize;
     if (odf->pguid) pdidoi->guidType = *odf->pguid;
-- 
1.4.3.4