Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S939212AbdD0W5t (ORCPT ); Thu, 27 Apr 2017 18:57:49 -0400 Received: from g9t1613g.houston.hpe.com ([15.241.32.99]:48454 "EHLO g9t1613g.houston.hpe.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936993AbdD0W5m (ORCPT ); Thu, 27 Apr 2017 18:57:42 -0400 From: Toshi Kani To: dan.j.williams@intel.com Cc: dave.jiang@intel.com, vishal.l.verma@intel.com, linux-nvdimm@ml01.01.org, linux-kernel@vger.kernel.org, Toshi Kani Subject: [PATCH 1/2] libnvdimm: fix clear length of nvdimm_forget_poison() Date: Thu, 27 Apr 2017 16:57:05 -0600 Message-Id: <20170427225706.26791-1-toshi.kani@hpe.com> X-Mailer: git-send-email 2.9.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1024 Lines: 32 ND_CMD_CLEAR_ERROR command returns 'clear_err.cleared', the length of error actually cleared, which may be smaller than its requested 'len'. Change nvdimm_clear_poison() to call nvdimm_forget_poison() with 'clear_err.cleared' when this value is valid. Signed-off-by: Toshi Kani Cc: Dan Williams Cc: Dave Jiang Cc: Vishal Verma --- Based on 'libnvdimm-for-next'. --- drivers/nvdimm/bus.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index d214ac44..43ddfd4 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -219,7 +219,9 @@ long nvdimm_clear_poison(struct device *dev, phys_addr_t phys, if (cmd_rc < 0) return cmd_rc; - nvdimm_forget_poison(nvdimm_bus, phys, len); + if (clear_err.cleared > 0) + nvdimm_forget_poison(nvdimm_bus, phys, clear_err.cleared); + return clear_err.cleared; } EXPORT_SYMBOL_GPL(nvdimm_clear_poison);