- fix for access past the buffer size (paint / sculpt used some 2d vecs as 3d)

- remove redundant NULL checks on old code where it would crash if the result was NULL later on.
- add some missing NULL checks.

source/blender/editors/interface/interface_regions.c

@@ -1235,7 +1235,7 @@ static void ui_block_position(wmWindow *window, ARegion *butregion, uiBut *but,
 	ysize= block->maxy - block->miny+4;
 	/*aspect/= (float)xsize;*/ /*UNUSED*/
 
-	if(but) {
+	{
 		int left=0, right=0, top=0, down=0;
 		int winx, winy;
 		// int offscreen;

source/blender/editors/object/object_modifier.c

@@ -724,7 +724,7 @@ static int modifier_remove_exec(bContext *C, wmOperator *op)
 	Scene *scene= CTX_data_scene(C);
 	Object *ob = ED_object_active_context(C);
 	ModifierData *md = edit_modifier_property_get(op, ob, 0);
-	int mode_orig = ob->mode;
+	int mode_orig = ob ? ob->mode : 0;
 	
 	if(!ob || !md || !ED_object_modifier_remove(op->reports, bmain, scene, ob, md))
 		return OPERATOR_CANCELLED;

source/blender/editors/sculpt_paint/paint_image.c

@@ -749,7 +749,7 @@ static int project_paint_occlude_ptv(float pt[3], float v1[3], float v2[3], floa
 
 static int project_paint_occlude_ptv_clip(
 		const ProjPaintState *ps, const MFace *mf,
-		float pt[3], float v1[3], float v2[3], float v3[3],
+		float pt[3], float v1[4], float v2[4], float v3[4],
 		const int side )
 {
 	float w[3], wco[3];

source/blender/editors/sculpt_paint/paint_stroke.c

@@ -683,7 +683,7 @@ static void paint_brush_stroke_add_step(bContext *C, wmOperator *op, wmEvent *ev
 	/* TODO: as sculpt and other paint modes are unified, this
 	   separation will go away */
 	if(stroke->vc.obact->sculpt) {
-		float delta[3];
+		float delta[2];
 
 		brush_jitter_pos(brush, mouse_in, mouse);
 
@@ -691,13 +691,14 @@ static void paint_brush_stroke_add_step(bContext *C, wmOperator *op, wmEvent *ev
 		   brush_jitter_pos isn't written in the best way to
 		   be reused here */
 		if(brush->flag & BRUSH_JITTER_PRESSURE) {
-			sub_v3_v3v3(delta, mouse, mouse_in);
+			sub_v2_v2v2(delta, mouse, mouse_in);
-			mul_v3_fl(delta, pressure);
+			mul_v2_fl(delta, pressure);
-			add_v3_v3v3(mouse, mouse_in, delta);
+			add_v2_v2v2(mouse, mouse_in, delta);
 		}
 	}
-	else
+	else {
-		copy_v3_v3(mouse, mouse_in);
+		copy_v2_v2(mouse, mouse_in);
+	}
 
 	/* TODO: can remove the if statement once all modes have this */
 	if(stroke->get_location)

source/blender/editors/sculpt_paint/sculpt.c

@@ -2996,7 +2996,7 @@ static void sculpt_update_brush_delta(Sculpt *sd, Object *ob, Brush *brush)
 			copy_v3_v3(cache->true_location, cache->orig_grab_location);
 
 			sd->draw_anchored = 1;
-			copy_v3_v3(sd->anchored_initial_mouse, cache->initial_mouse);
+			copy_v2_v2(sd->anchored_initial_mouse, cache->initial_mouse);
 			sd->anchored_size = cache->pixel_radius;
 		}
 	}

source/blender/editors/space_file/file_ops.c

@@ -164,22 +164,26 @@ static FileSelect file_select_do(bContext* C, int selected_idx)
 	SpaceFile *sfile= CTX_wm_space_file(C);
 	FileSelectParams *params = ED_fileselect_get_params(sfile);
 	int numfiles = filelist_numfiles(sfile->files);
+	struct direntry* file;
 
 	/* make the selected file active */
-	if ( (selected_idx >= 0) && (selected_idx < numfiles)) {
+	if (		(selected_idx >= 0) &&
-		struct direntry* file = filelist_file(sfile->files, selected_idx);
+	            (selected_idx < numfiles) &&
+	            (file= filelist_file(sfile->files, selected_idx)))
+	{
 		params->active_file = selected_idx;
 
-		if(file && S_ISDIR(file->type)) {
+		if(S_ISDIR(file->type)) {
 			/* the path is too long and we are not going up! */
-			if (strcmp(file->relname, "..") && strlen(params->dir) + strlen(file->relname) >= FILE_MAX ) 
+			if (strcmp(file->relname, "..") && strlen(params->dir) + strlen(file->relname) >= FILE_MAX )  {
-			{
 				// XXX error("Path too long, cannot enter this directory");
-			} else {
+			}
+			else {
 				if (strcmp(file->relname, "..")==0) {
 					/* avoids /../../ */
 					BLI_parent_dir(params->dir);
-				} else {
+				}
+				else {
 					BLI_cleanup_dir(G.main->name, params->dir);
 					strcat(params->dir, file->relname);
 					BLI_add_slash(params->dir);
@@ -189,8 +193,7 @@ static FileSelect file_select_do(bContext* C, int selected_idx)
 				retval = FILE_SELECT_DIR;
 			}
 		}
-		else if (file)
+		else  {
-		{
 			if (file->relname) {
 				BLI_strncpy(params->file, file->relname, FILE_MAXFILE);
 			}

source/blender/gpu/intern/gpu_extensions.c

@@ -514,7 +514,6 @@ GPUTexture *GPU_texture_create_3D(int w, int h, int depth, float *fpixels)
 	if (pixels)
 		MEM_freeN(pixels);
 
-	if (tex)
 	GPU_texture_unbind(tex);
 
 	return tex;

source/blender/imbuf/intern/filter.c

@@ -518,7 +518,7 @@ void IMB_makemipmap(ImBuf *ibuf, int use_filter)
 		hbuf= ibuf->mipmap[curmap];
 		hbuf->miplevel= curmap+1;
 
-		if(!hbuf || (hbuf->x <= 2 && hbuf->y <= 2))
+		if(hbuf->x <= 2 && hbuf->y <= 2)
 			break;
 
 		curmap++;

source/blender/imbuf/intern/iris.c

@@ -515,15 +515,16 @@ struct ImBuf *imb_loadiris(unsigned char *mem, size_t size, int flags)
 		
 	}
 
+	if (ibuf) {
 		ibuf->ftype = IMAGIC;
 		ibuf->profile = IB_PROFILE_SRGB;
 
 		test_endian_zbuf(ibuf);
 
-	if (ibuf) {
+		if (ibuf->rect) {
-		if (ibuf->rect) 
 			IMB_convert_rgba_to_abgr(ibuf);
 		}
+	}
 
 	return(ibuf);
 }

source/blender/makesrna/intern/rna_texture_api.c

@@ -68,7 +68,7 @@ void clear_envmap(struct EnvMap *env, bContext *C)
 		}
 }
 
-void texture_evaluate(struct Tex *tex, float value[3], float color_r[3])
+void texture_evaluate(struct Tex *tex, float value[3], float color_r[4])
 {
 	TexResult texres= {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0, NULL};
 	multitex_ext(tex, value, NULL, NULL, 1, &texres);

source/blender/render/intern/source/shadeinput.c

@@ -1165,9 +1165,10 @@ void shade_input_set_shade_texco(ShadeInput *shi)
 						shi->vcol[2]= 1.0f;
 						shi->vcol[3]= 1.0f;
 					}
-					if(tface && tface->tpage)
+					if(tface->tpage) {
 						render_realtime_texture(shi, tface->tpage);
 					}
+				}
 
 
 			}

source/blender/render/intern/source/zbuf.c

@@ -239,7 +239,7 @@ static short cliptestf(float p, float q, float *u1, float *u2)
 	return 1;
 }
 
-int testclip(const float v[3])
+int testclip(const float v[4])
 {
 	float abs4;	/* WATCH IT: this function should do the same as cliptestf, otherwise troubles in zbufclip()*/
 	short c=0;