request->state = RUN_MKCOL;
        } else {
                request->state = ABORTED;
-               free(request->url);
-               request->url = NULL;
+               FREE_AND_NULL(request->url);
        }
 }
 #endif
                request->state = RUN_PUT;
        } else {
                request->state = ABORTED;
-               free(request->url);
-               request->url = NULL;
+               FREE_AND_NULL(request->url);
        }
 }
 
                request->state = RUN_MOVE;
        } else {
                request->state = ABORTED;
-               free(request->url);
-               request->url = NULL;
+               FREE_AND_NULL(request->url);
        }
 }
 
 
        /* URL is reused for MOVE after PUT */
        if (request->state != RUN_PUT) {
-               free(request->url);
-               request->url = NULL;
+               FREE_AND_NULL(request->url);
        }
 
        if (request->state == RUN_MKCOL) {
        }
        xsnprintf(ctx->name + old_namelen, ctx->len - old_namelen, ".%s", c);
 
-       free(ctx->cdata);
-       ctx->cdata = NULL;
+       FREE_AND_NULL(ctx->cdata);
 
        ctx->userFunc(ctx, 0);
 }
                free(lock->token);
                free(lock->owner);
                free(url);
-               free(lock);
-               lock = NULL;
+               FREE_AND_NULL(lock);
        } else {
                lock->url = url;
                lock->start_time = time(NULL);
                        ls->dentry_flags |= IS_DIR;
                }
        } else if (!strcmp(ctx->name, DAV_PROPFIND_RESP)) {
-               free(ls->dentry_name);
-               ls->dentry_name = NULL;
+               FREE_AND_NULL(ls->dentry_name);
                ls->dentry_flags = 0;
        }
 }
                    curl_errorstr);
        free(url);
 
-       free(*symref);
-       *symref = NULL;
+       FREE_AND_NULL(*symref);
        oidclr(oid);
 
        if (buffer.len == 0)