Cleanup: logic for eyedropper free on failure

Although currently unused, if exec was called and failed it would leak.

source/blender/editors/interface/interface_eyedropper_color.c

@@ -81,10 +81,7 @@ typedef struct Eyedropper {
 
 static bool eyedropper_init(bContext *C, wmOperator *op)
 {
-	Scene *scene = CTX_data_scene(C);
-	Eyedropper *eye;
-
-	op->customdata = eye = MEM_callocN(sizeof(Eyedropper), "Eyedropper");
+	Eyedropper *eye = MEM_callocN(sizeof(Eyedropper), __func__);
 	eye->use_accum = RNA_boolean_get(op->ptr, "use_accumulate");
 
 	UI_context_active_but_prop_get(C, &eye->ptr, &eye->prop, &eye->index);
@@ -95,10 +92,13 @@ static bool eyedropper_init(bContext *C, wmOperator *op)
 	    (RNA_property_array_length(&eye->ptr, eye->prop) < 3) ||
 	    (RNA_property_type(eye->prop) != PROP_FLOAT))
 	{
+		MEM_freeN(eye);
 		return false;
 	}
+	op->customdata = eye;
 
 	if (RNA_property_subtype(eye->prop) != PROP_COLOR) {
+		Scene *scene = CTX_data_scene(C);
 		const char *display_device;
 		float col[4];
 
@@ -113,6 +113,7 @@ static bool eyedropper_init(bContext *C, wmOperator *op)
 		copy_v3_v3(eye->init_col, col);
 	}
 
+
 	return true;
 }
 
@@ -298,7 +299,6 @@ static int eyedropper_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(
 		return OPERATOR_RUNNING_MODAL;
 	}
 	else {
-		eyedropper_exit(C, op);
 		return OPERATOR_PASS_THROUGH;
 	}
 }

source/blender/editors/interface/interface_eyedropper_colorband.c

@@ -83,7 +83,6 @@ struct EyedropperColorband_Context {
 static bool eyedropper_colorband_init(bContext *C, wmOperator *op)
 {
 	ColorBand *band = NULL;
-	EyedropperColorband *eye;
 
 	uiBut *but = UI_context_active_but_get(C);
 
@@ -99,10 +98,11 @@ static bool eyedropper_colorband_init(bContext *C, wmOperator *op)
 		band = (ColorBand *)but->custom_data;
 	}
 
-	if (!band)
+	if (!band) {
 		return false;
+	}
 
-	op->customdata = eye = MEM_callocN(sizeof(EyedropperColorband), __func__);
+	EyedropperColorband *eye = MEM_callocN(sizeof(EyedropperColorband), __func__);
 	eye->color_buffer_alloc = 16;
 	eye->color_buffer = MEM_mallocN(sizeof(*eye->color_buffer) * eye->color_buffer_alloc, __func__);
 	eye->color_buffer_len = 0;
@@ -111,6 +111,8 @@ static bool eyedropper_colorband_init(bContext *C, wmOperator *op)
 	eye->ptr = ((Colorband_RNAUpdateCb *)but->func_argN)->ptr;
 	eye->prop  = ((Colorband_RNAUpdateCb *)but->func_argN)->prop;
 
+	op->customdata = eye;
+
 	return true;
 }
 
@@ -266,7 +268,6 @@ static int eyedropper_colorband_invoke(bContext *C, wmOperator *op, const wmEven
 		return OPERATOR_RUNNING_MODAL;
 	}
 	else {
-		eyedropper_colorband_exit(C, op);
 		return OPERATOR_CANCELLED;
 	}
 }

source/blender/editors/interface/interface_eyedropper_datablock.c

@@ -86,7 +86,6 @@ static void datadropper_draw_cb(const struct bContext *C, ARegion *ar, void *arg
 
 static int datadropper_init(bContext *C, wmOperator *op)
 {
-	DataDropper *ddr;
 	int index_dummy;
 	StructRNA *type;
 
@@ -96,7 +95,7 @@ static int datadropper_init(bContext *C, wmOperator *op)
 	st = BKE_spacetype_from_id(SPACE_VIEW3D);
 	art = BKE_regiontype_from_id(st, RGN_TYPE_WINDOW);
 
-	op->customdata = ddr = MEM_callocN(sizeof(DataDropper), "DataDropper");
+	DataDropper *ddr = MEM_callocN(sizeof(DataDropper), __func__);
 
 	UI_context_active_but_prop_get(C, &ddr->ptr, &ddr->prop, &index_dummy);
 
@@ -105,8 +104,10 @@ static int datadropper_init(bContext *C, wmOperator *op)
 	    (RNA_property_editable(&ddr->ptr, ddr->prop) == false) ||
 	    (RNA_property_type(ddr->prop) != PROP_POINTER))
 	{
+		MEM_freeN(ddr);
 		return false;
 	}
+	op->customdata = ddr;
 
 	ddr->art = art;
 	ddr->draw_handle_pixel = ED_region_draw_cb_activate(art, datadropper_draw_cb, ddr, REGION_DRAW_POST_PIXEL);
@@ -289,7 +290,6 @@ static int datadropper_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED
 		return OPERATOR_RUNNING_MODAL;
 	}
 	else {
-		datadropper_exit(C, op);
 		return OPERATOR_CANCELLED;
 	}
 }

source/blender/editors/interface/interface_eyedropper_depth.c

@@ -89,7 +89,6 @@ static void depthdropper_draw_cb(const struct bContext *C, ARegion *ar, void *ar
 
 static int depthdropper_init(bContext *C, wmOperator *op)
 {
-	DepthDropper *ddr;
 	int index_dummy;
 
 	SpaceType *st;
@@ -98,7 +97,7 @@ static int depthdropper_init(bContext *C, wmOperator *op)
 	st = BKE_spacetype_from_id(SPACE_VIEW3D);
 	art = BKE_regiontype_from_id(st, RGN_TYPE_WINDOW);
 
-	op->customdata = ddr = MEM_callocN(sizeof(DepthDropper), "DepthDropper");
+	DepthDropper *ddr = MEM_callocN(sizeof(DepthDropper), __func__);
 
 	UI_context_active_but_prop_get(C, &ddr->ptr, &ddr->prop, &index_dummy);
 
@@ -119,8 +118,10 @@ static int depthdropper_init(bContext *C, wmOperator *op)
 	    (RNA_property_editable(&ddr->ptr, ddr->prop) == false) ||
 	    (RNA_property_type(ddr->prop) != PROP_FLOAT))
 	{
+		MEM_freeN(ddr);
 		return false;
 	}
+	op->customdata = ddr;
 
 	ddr->art = art;
 	ddr->draw_handle_pixel = ED_region_draw_cb_activate(art, depthdropper_draw_cb, ddr, REGION_DRAW_POST_PIXEL);
@@ -312,7 +313,6 @@ static int depthdropper_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSE
 		return OPERATOR_RUNNING_MODAL;
 	}
 	else {
-		depthdropper_exit(C, op);
 		return OPERATOR_CANCELLED;
 	}
 }

source/blender/editors/interface/interface_eyedropper_driver.c

@@ -70,12 +70,9 @@ typedef struct DriverDropper {
 
 static bool driverdropper_init(bContext *C, wmOperator *op)
 {
-	DriverDropper *ddr;
-	uiBut *but;
+	DriverDropper *ddr = MEM_callocN(sizeof(DriverDropper), __func__);
 
-	op->customdata = ddr = MEM_callocN(sizeof(DriverDropper), "DriverDropper");
-
-	but = UI_context_active_but_prop_get(C, &ddr->ptr, &ddr->prop, &ddr->index);
+	uiBut *but = UI_context_active_but_prop_get(C, &ddr->ptr, &ddr->prop, &ddr->index);
 
 	if ((ddr->ptr.data == NULL) ||
 	    (ddr->prop == NULL) ||
@@ -83,8 +80,10 @@ static bool driverdropper_init(bContext *C, wmOperator *op)
 	    (RNA_property_animateable(&ddr->ptr, ddr->prop) == false) ||
 	    (but->flag & UI_BUT_DRIVEN))
 	{
+		MEM_freeN(ddr);
 		return false;
 	}
+	op->customdata = ddr;
 
 	return true;
 }
@@ -185,7 +184,6 @@ static int driverdropper_invoke(bContext *C, wmOperator *op, const wmEvent *UNUS
 		return OPERATOR_RUNNING_MODAL;
 	}
 	else {
-		driverdropper_exit(C, op);
 		return OPERATOR_CANCELLED;
 	}
 }