Cleanup: redundant NULL checks

Also use unsigned shifting for values not in int range.

source/blender/blenkernel/intern/rigidbody.c

@@ -148,7 +148,7 @@ void BKE_rigidbody_free_world(Scene *scene)
 void BKE_rigidbody_free_object(Object *ob, RigidBodyWorld *rbw)
 {
 	bool is_orig = (ob->id.tag & LIB_TAG_COPIED_ON_WRITE) == 0;
-	RigidBodyOb *rbo = (ob) ? ob->rigidbody_object : NULL;
+	RigidBodyOb *rbo = ob->rigidbody_object;
 
 	/* sanity check */
 	if (rbo == NULL)

source/blender/editors/include/UI_interface.h

@@ -195,7 +195,7 @@ enum {
 	UI_BUT_TEXTEDIT_UPDATE = (1 << 29),  /* when widget is in textedit mode, update value on each char stroke */
 	UI_BUT_VALUE_CLEAR     = (1 << 30),  /* show 'x' icon to clear/unlink value of text or search button */
 
-	UI_BUT_OVERRIDEN       = (1 << 31),  /* RNA property of the button is overridden from linked reference data. */
+	UI_BUT_OVERRIDEN       = (1u << 31u),  /* RNA property of the button is overridden from linked reference data. */
 };
 
 #define UI_PANEL_WIDTH          340

source/blender/editors/screen/area.c

@@ -1354,7 +1354,7 @@ static void region_rect_recursive(ScrArea *sa, ARegion *ar, rcti *remainder, rct
 	if (ar->winy > 1) ar->sizey = (ar->winy + 0.5f) /  UI_DPI_FAC;
 
 	/* exception for multiple overlapping regions on same spot */
-	if (ar->overlap & (alignment != RGN_ALIGN_FLOAT)) {
+	if (ar->overlap && (alignment != RGN_ALIGN_FLOAT)) {
 		region_overlap_fix(sa, ar);
 	}
 

source/blender/editors/space_view3d/view3d_gizmo_ruler.c

@@ -306,13 +306,13 @@ static bool view3d_ruler_item_mousemove(
         RulerInfo *ruler_info, RulerItem *ruler_item, const int mval[2],
         const bool do_thickness, const bool do_snap)
 {
-	RulerInteraction *inter = ruler_item->gz.interaction_data;
 	const float eps_bias = 0.0002f;
 	float dist_px = MVAL_MAX_PX_DIST * U.pixelsize;  /* snap dist */
 
 	ruler_info->snap_flag &= ~RULER_SNAP_OK;
 
 	if (ruler_item) {
+		RulerInteraction *inter = ruler_item->gz.interaction_data;
 		float *co = ruler_item->co[inter->co_index];
 		/* restore the initial depth */
 		copy_v3_v3(co, inter->drag_start_co);

source/blender/editors/transform/transform_snap_object.c

@@ -1253,10 +1253,7 @@ static short snap_mesh_polygon(
 			normalize_v3(r_no);
 		}
 
-		if (r_index) {
-			*r_index = nearest.index;
-		}
-
+		*r_index = nearest.index;
 		return elem;
 	}
 
@@ -1355,9 +1352,7 @@ static short snap_mesh_edge_verts_mixed(
 			normalize_v3(r_no);
 		}
 
-		if (r_index) {
-			*r_index = nearest.index;
-		}
+		*r_index = nearest.index;
 	}
 
 	return elem;

source/blender/gpu/GPU_batch.h

@@ -95,7 +95,7 @@ enum {
 	GPU_BATCH_OWNS_VBO = (1 << 0),
 	/* each vbo index gets bit-shifted */
 	GPU_BATCH_OWNS_INSTANCES = (1 << 30),
-	GPU_BATCH_OWNS_INDEX = (1 << 31),
+	GPU_BATCH_OWNS_INDEX = (1u << 31u),
 };
 
 GPUBatch *GPU_batch_create_ex(GPUPrimType, GPUVertBuf *, GPUIndexBuf *, uint owns_flag);

source/blender/makesdna/DNA_scene_types.h

@@ -263,7 +263,7 @@ typedef enum eScenePassType {
 	SCE_PASS_SUBSURFACE_DIRECT        = (1 << 28),
 	SCE_PASS_SUBSURFACE_INDIRECT      = (1 << 29),
 	SCE_PASS_SUBSURFACE_COLOR         = (1 << 30),
-	SCE_PASS_ROUGHNESS                = (1 << 31),
+	SCE_PASS_ROUGHNESS                = (1u << 31u),
 } eScenePassType;
 
 #define RE_PASSNAME_COMBINED "Combined"

source/blender/render/intern/source/bake_api.c

@@ -432,7 +432,7 @@ static TriTessFace *mesh_calc_tri_tessface(
 	            me->totloop, me->totpoly,
 	            looptri);
 
-	const float *precomputed_normals = me ? CustomData_get_layer(&me->pdata, CD_NORMAL) : NULL;
+	const float *precomputed_normals = CustomData_get_layer(&me->pdata, CD_NORMAL);
 	const bool calculate_normal = precomputed_normals ? false : true;
 
 	for (i = 0; i < tottri; i++) {