[PATCH 1/1] windows.devices.enumeration: Guard against WindowsDuplicateString() failure.

[Mohamad Al-Jaf]

From: Mohamad Al-Jaf

---
 dlls/windows.devices.enumeration/main.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/dlls/windows.devices.enumeration/main.c b/dlls/windows.devices.enumeration/main.c
index e1f8b5c5ae5..5c930dba121 100644
--- a/dlls/windows.devices.enumeration/main.c
+++ b/dlls/windows.devices.enumeration/main.c
@@ -377,6 +377,7 @@ static HRESULT WINAPI device_statics_CreateWatcherDeviceClass( IDeviceInformatio
 static HRESULT WINAPI device_statics_CreateWatcherAqsFilter( IDeviceInformationStatics *iface, HSTRING filter, IDeviceWatcher **watcher )
 {
     struct device_watcher *this;
+    HRESULT hr;

TRACE( "iface %p, filter %s, watcher %p\n", iface, debugstr_hstring(filter), watcher );

@@ -384,7 +385,11 @@ static HRESULT WINAPI device_statics_CreateWatcherAqsFilter( IDeviceInformationS

this->IDeviceWatcher_iface.lpVtbl = &device_watcher_vtbl;
     this->ref = 1;
-    WindowsDuplicateString( filter, &this->filter );
+    if (FAILED(hr = WindowsDuplicateString( filter, &this->filter )))
+    {
+        free( this );
+        return hr;
+    }

list_init( &this->stopped_handlers );

@@ -453,6 +458,7 @@ static HRESULT WINAPI device_statics2_CreateWatcher( IDeviceInformationStatics2
                                                      IDeviceWatcher **watcher )
 {
     struct device_watcher *this;
+    HRESULT hr;

FIXME( "iface %p, filter %s, additional_properties %p, kind %u, watcher %p semi-stub!\n",
             iface, debugstr_hstring( filter ), additional_properties, kind, watcher );
@@ -462,7 +468,11 @@ static HRESULT WINAPI device_statics2_CreateWatcher( IDeviceInformationStatics2

this->IDeviceWatcher_iface.lpVtbl = &device_watcher_vtbl;
     this->ref = 1;
-    WindowsDuplicateString( filter, &this->filter );
+    if (FAILED(hr = WindowsDuplicateString( filter, &this->filter )))
+    {
+        free( this );
+        return hr;
+    }

list_init( &this->stopped_handlers );