Christian Costa : dmsynth: Cleanup QueryInterface methods.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 6894f384f1085bd94491cb1a724114215fd110bf
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=6894f384f1085bd94491cb1a724114215fd110bf

Author: Christian Costa <titan.costa at gmail.com>
Date:   Fri May 11 08:18:42 2012 +0200

dmsynth: Cleanup QueryInterface methods.

---

 dlls/dmsynth/synth.c     |   37 +++++++++++++++++++++----------------
 dlls/dmsynth/synthsink.c |   38 ++++++++++++++++++++++----------------
 2 files changed, 43 insertions(+), 32 deletions(-)

diff --git a/dlls/dmsynth/synth.c b/dlls/dmsynth/synth.c
index 657f3bd..e5d5e1c 100644
--- a/dlls/dmsynth/synth.c
+++ b/dlls/dmsynth/synth.c
@@ -34,27 +34,32 @@ static inline IDirectMusicSynth8Impl *impl_from_IDirectMusicSynth8(IDirectMusicS
 }
 
 /* IDirectMusicSynth8Impl IUnknown part: */
-static HRESULT WINAPI IDirectMusicSynth8Impl_QueryInterface(LPDIRECTMUSICSYNTH8 iface, REFIID riid, LPVOID *ppobj)
+static HRESULT WINAPI IDirectMusicSynth8Impl_QueryInterface(LPDIRECTMUSICSYNTH8 iface, REFIID riid, LPVOID *ret_iface)
 {
-	IDirectMusicSynth8Impl *This = impl_from_IDirectMusicSynth8(iface);
+    IDirectMusicSynth8Impl *This = impl_from_IDirectMusicSynth8(iface);
 
-	TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);
+    TRACE("(%p)->(%s, %p)\n", iface, debugstr_dmguid(riid), ret_iface);
 
-	if (IsEqualIID (riid, &IID_IUnknown) || 
-	    IsEqualIID (riid, &IID_IDirectMusicSynth) ||
-	    IsEqualIID (riid, &IID_IDirectMusicSynth8)) {
-		IUnknown_AddRef(iface);
-		*ppobj = This;
-		return S_OK;
-	}
-    else if (IsEqualIID(riid, &IID_IKsControl)) {
-		IUnknown_AddRef(iface);
-		*ppobj = &This->IKsControl_iface;
-		return S_OK;
+    if (IsEqualIID (riid, &IID_IUnknown) ||
+        IsEqualIID (riid, &IID_IDirectMusicSynth) ||
+        IsEqualIID (riid, &IID_IDirectMusicSynth8))
+    {
+        IUnknown_AddRef(iface);
+        *ret_iface = iface;
+        return S_OK;
+    }
+    else if (IsEqualIID(riid, &IID_IKsControl))
+    {
+        IUnknown_AddRef(iface);
+        *ret_iface = &This->IKsControl_iface;
+        return S_OK;
     }
 
-	WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
-	return E_NOINTERFACE;
+    *ret_iface = NULL;
+
+    WARN("(%p)->(%s, %p): not found\n", iface, debugstr_dmguid(riid), ret_iface);
+
+    return E_NOINTERFACE;
 }
 
 static ULONG WINAPI IDirectMusicSynth8Impl_AddRef(LPDIRECTMUSICSYNTH8 iface)
diff --git a/dlls/dmsynth/synthsink.c b/dlls/dmsynth/synthsink.c
index 42c2d4c..a63f36c 100644
--- a/dlls/dmsynth/synthsink.c
+++ b/dlls/dmsynth/synthsink.c
@@ -30,25 +30,31 @@ static inline IDirectMusicSynthSinkImpl *impl_from_IDirectMusicSynthSink(IDirect
 }
 
 /* IDirectMusicSynthSinkImpl IUnknown part: */
-static HRESULT WINAPI IDirectMusicSynthSinkImpl_QueryInterface(LPDIRECTMUSICSYNTHSINK iface, REFIID riid, LPVOID *ppobj)
+static HRESULT WINAPI IDirectMusicSynthSinkImpl_QueryInterface(LPDIRECTMUSICSYNTHSINK iface, REFIID riid, LPVOID *ret_iface)
 {
-	IDirectMusicSynthSinkImpl *This = impl_from_IDirectMusicSynthSink(iface);
-	TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);
-
-	if (IsEqualIID (riid, &IID_IUnknown) || 
-	    IsEqualIID (riid, &IID_IDirectMusicSynthSink)) {
-		IUnknown_AddRef(iface);
-		*ppobj = This;
-		return S_OK;
-	}
-    else if (IsEqualIID(riid, &IID_IKsControl)) {
-		IUnknown_AddRef(iface);
-		*ppobj = &This->IKsControl_iface;
-		return S_OK;
+    IDirectMusicSynthSinkImpl *This = impl_from_IDirectMusicSynthSink(iface);
+
+    TRACE("(%p)->(%s, %p)\n", iface, debugstr_dmguid(riid), ret_iface);
+
+    if (IsEqualIID (riid, &IID_IUnknown) ||
+        IsEqualIID (riid, &IID_IDirectMusicSynthSink))
+    {
+        IUnknown_AddRef(iface);
+        *ret_iface = iface;
+        return S_OK;
     }
+    else if (IsEqualIID(riid, &IID_IKsControl))
+    {
+        IUnknown_AddRef(iface);
+        *ret_iface = &This->IKsControl_iface;
+        return S_OK;
+    }
+
+    *ret_iface = NULL;
+
+    WARN("(%p)->(%s, %p): not found\n", iface, debugstr_dmguid(riid), ret_iface);
 
-	WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
-	return E_NOINTERFACE;
+    return E_NOINTERFACE;
 }
 
 static ULONG WINAPI IDirectMusicSynthSinkImpl_AddRef(LPDIRECTMUSICSYNTHSINK iface)