[2/2] windowscodecs: Check guid pointer for NULL in TiffDecoder_GetContainerFormat.

[Dmitry Timoshkov]

---
 dlls/windowscodecs/tiffformat.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dlls/windowscodecs/tiffformat.c b/dlls/windowscodecs/tiffformat.c
index 05bd59e..05b6aba 100644
--- a/dlls/windowscodecs/tiffformat.c
+++ b/dlls/windowscodecs/tiffformat.c
@@ -595,6 +595,8 @@ exit:
 static HRESULT WINAPI TiffDecoder_GetContainerFormat(IWICBitmapDecoder *iface,
     GUID *pguidContainerFormat)
 {
+    if (!pguidContainerFormat) return E_INVALIDARG;
+
     memcpy(pguidContainerFormat, &GUID_ContainerFormatTiff, sizeof(GUID));
     return S_OK;
 }
-- 
1.7.11.5