Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752305AbdHALjg (ORCPT ); Tue, 1 Aug 2017 07:39:36 -0400 Received: from mail-pf0-f195.google.com ([209.85.192.195]:34866 "EHLO mail-pf0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751900AbdHALje (ORCPT ); Tue, 1 Aug 2017 07:39:34 -0400 From: Arvind Yadav To: boris.brezillon@free-electrons.com, richard@nod.at, dwmw2@infradead.org, computersforpeace@gmail.com, marek.vasut@gmail.com, cyrille.pitchen@wedev4u.fr, narmstrong@baylibre.com Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/6] mtd: nand: vf610_nfc: Handle return value of clk_prepare_enable. Date: Tue, 1 Aug 2017 17:09:18 +0530 Message-Id: <1501587558-21227-1-git-send-email-arvind.yadav.cs@gmail.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 791 Lines: 28 clk_prepare_enable() can fail here and we must check its return value. Signed-off-by: Arvind Yadav --- drivers/mtd/nand/vf610_nfc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/vf610_nfc.c b/drivers/mtd/nand/vf610_nfc.c index 744ab10..db03d4f 100644 --- a/drivers/mtd/nand/vf610_nfc.c +++ b/drivers/mtd/nand/vf610_nfc.c @@ -816,10 +816,13 @@ static int vf610_nfc_resume(struct device *dev) { struct mtd_info *mtd = dev_get_drvdata(dev); struct vf610_nfc *nfc = mtd_to_nfc(mtd); + int ret; pinctrl_pm_select_default_state(dev); - clk_prepare_enable(nfc->clk); + ret = clk_prepare_enable(nfc->clk); + if (ret) + return ret; vf610_nfc_preinit_controller(nfc); vf610_nfc_init_controller(nfc); -- 1.9.1