framebuffer.accelerant: Utilize AreaDeleter.

src/add-ons/accelerants/framebuffer/Jamfile

@@ -3,6 +3,7 @@ SubDir HAIKU_TOP src add-ons accelerants framebuffer ;
 UsePrivateHeaders graphics ;
 UsePrivateHeaders [ FDirName graphics vesa ] ;
 UsePrivateHeaders [ FDirName graphics common ] ;
+UsePrivateHeaders shared ;
 
 Addon framebuffer.accelerant :
 	accelerant.cpp

src/add-ons/accelerants/framebuffer/accelerant.cpp

@@ -14,6 +14,8 @@
 #include <errno.h>
 #include <syslog.h>
 
+#include <AutoDeleterOS.h>
+
 
 //#define TRACE_ACCELERANT
 #ifdef TRACE_ACCELERANT
@@ -27,51 +29,6 @@ extern "C" void _sPrintf(const char *format, ...);
 struct accelerant_info *gInfo;
 
 
-class AreaCloner {
-	public:
-		AreaCloner();
-		~AreaCloner();
-
-		area_id Clone(const char *name, void **_address, uint32 spec,
-					uint32 protection, area_id sourceArea);
-		status_t InitCheck() { return fArea < B_OK ? (status_t)fArea : B_OK; }
-		void Keep();
-
-	private:
-		area_id	fArea;
-};
-
-
-AreaCloner::AreaCloner()
-	:
-	fArea(-1)
-{
-}
-
-
-AreaCloner::~AreaCloner()
-{
-	if (fArea >= B_OK)
-		delete_area(fArea);
-}
-
-
-area_id
-AreaCloner::Clone(const char *name, void **_address, uint32 spec,
-	uint32 protection, area_id sourceArea)
-{
-	fArea = clone_area(name, _address, spec, protection, sourceArea);
-	return fArea;
-}
-
-
-void
-AreaCloner::Keep()
-{
-	fArea = -1;
-}
-
-
 //	#pragma mark -
 
 
@@ -84,6 +41,7 @@ init_common(int device, bool isClone)
 	// initialize global accelerant info structure
 
 	gInfo = (accelerant_info *)malloc(sizeof(accelerant_info));
+	MemoryDeleter infoDeleter(gInfo);
 	if (gInfo == NULL)
 		return B_NO_MEMORY;
 
@@ -96,23 +54,18 @@ init_common(int device, bool isClone)
 	// get basic info from driver
 
 	area_id sharedArea;
-	if (ioctl(device, VESA_GET_PRIVATE_DATA, &sharedArea, sizeof(area_id))
-			!= 0) {
-		free(gInfo);
+	if (ioctl(device, VESA_GET_PRIVATE_DATA, &sharedArea, sizeof(area_id)) != 0)
 		return B_ERROR;
-	}
 
-	AreaCloner sharedCloner;
-	gInfo->shared_info_area = sharedCloner.Clone("framebuffer shared info",
+	AreaDeleter sharedDeleter(clone_area("vesa shared info",
 		(void **)&gInfo->shared_info, B_ANY_ADDRESS,
-		B_READ_AREA | B_WRITE_AREA, sharedArea);
-	status_t status = sharedCloner.InitCheck();
-	if (status < B_OK) {
-		free(gInfo);
+		B_READ_AREA | B_WRITE_AREA, sharedArea));
+	status_t status = gInfo->shared_info_area = sharedDeleter.Get();
+	if (status < B_OK)
 		return status;
-	}
 
-	sharedCloner.Keep();
+	infoDeleter.Detach();
+	sharedDeleter.Detach();
 	return B_OK;
 }