[Bf-blender-cvs] [a8fa291] master: Fix two potential bugs reported by latest coverity scan.

[Bastien Montagne]

Commit: a8fa291b8c539da7669463ef622d5c61ee9c90e7
Author: Bastien Montagne
Date:   Mon Jan 19 17:51:25 2015 +0100
Branches: master
https://developer.blender.org/rBa8fa291b8c539da7669463ef622d5c61ee9c90e7

Fix two potential bugs reported by latest coverity scan.

===================================================================

M	source/blender/editors/interface/interface_eyedropper.c
M	source/blender/editors/mesh/editmesh_knife.c

===================================================================

diff --git a/source/blender/editors/interface/interface_eyedropper.c b/source/blender/editors/interface/interface_eyedropper.c
index d7a4720..9b5d067 100644
--- a/source/blender/editors/interface/interface_eyedropper.c
+++ b/source/blender/editors/interface/interface_eyedropper.c
@@ -830,8 +830,10 @@ static void depthdropper_depth_set(bContext *C, DepthDropper *ddr, const float d
 /* set sample from accumulated values */
 static void depthdropper_depth_set_accum(bContext *C, DepthDropper *ddr)
 {
-	float depth;
-	depth = ddr->accum_depth * 1.0f / (float)ddr->accum_tot;
+	float depth = ddr->accum_depth;
+	if (ddr->accum_tot) {
+		depth /= (float)ddr->accum_tot;
+	}
 	depthdropper_depth_set(C, ddr, depth);
 }
 
diff --git a/source/blender/editors/mesh/editmesh_knife.c b/source/blender/editors/mesh/editmesh_knife.c
index 0a78f29..e8a5202 100644
--- a/source/blender/editors/mesh/editmesh_knife.c
+++ b/source/blender/editors/mesh/editmesh_knife.c
@@ -1241,7 +1241,9 @@ static BMElem *bm_elem_from_knife_vert(KnifeVert *kfv, KnifeEdge **r_kfe)
 			for (ref = kfv->edges.first; ref; ref = ref->next) {
 				kfe = ref->ref;
 				if (kfe->e) {
-					*r_kfe = kfe;
+					if (r_kfe) {
+						*r_kfe = kfe;
+					}
 					break;
 				}
 			}