From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org (mail.kernel.org. [198.145.29.99]) by gmr-mx.google.com with ESMTPS id c4si882332plr.4.2020.01.16.08.55.57 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 16 Jan 2020 08:55:57 -0800 (PST) From: Sasha Levin Subject: [PATCH AUTOSEL 4.19 045/671] NTB: ntb_hw_idt: replace IS_ERR_OR_NULL with regular NULL checks Date: Thu, 16 Jan 2020 11:44:36 -0500 Message-Id: <20200116165502.8838-45-sashal@kernel.org> In-Reply-To: <20200116165502.8838-1-sashal@kernel.org> References: <20200116165502.8838-1-sashal@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: "Gustavo A. R. Silva" , Jon Mason , Sasha Levin , linux-ntb@googlegroups.com List-ID: From: "Gustavo A. R. Silva" [ Upstream commit 1b7619828d0c341612f58683e73f279c37e70bbc ] Both devm_kcalloc() and devm_kzalloc() return NULL on error. They never return error pointers. The use of IS_ERR_OR_NULL is currently applied to the wrong context. Fix this by replacing IS_ERR_OR_NULL with regular NULL checks. Fixes: bf2a952d31d2 ("NTB: Add IDT 89HPESxNTx PCIe-switches support") Signed-off-by: Gustavo A. R. Silva Signed-off-by: Jon Mason Signed-off-by: Sasha Levin --- drivers/ntb/hw/idt/ntb_hw_idt.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/ntb/hw/idt/ntb_hw_idt.c b/drivers/ntb/hw/idt/ntb_hw_idt.c index dbe72f116017..a67ef23e81bc 100644 --- a/drivers/ntb/hw/idt/ntb_hw_idt.c +++ b/drivers/ntb/hw/idt/ntb_hw_idt.c @@ -1105,9 +1105,9 @@ static struct idt_mw_cfg *idt_scan_mws(struct idt_ntb_dev *ndev, int port, } /* Allocate memory for memory window descriptors */ - ret_mws = devm_kcalloc(&ndev->ntb.pdev->dev, *mw_cnt, - sizeof(*ret_mws), GFP_KERNEL); - if (IS_ERR_OR_NULL(ret_mws)) + ret_mws = devm_kcalloc(&ndev->ntb.pdev->dev, *mw_cnt, sizeof(*ret_mws), + GFP_KERNEL); + if (!ret_mws) return ERR_PTR(-ENOMEM); /* Copy the info of detected memory windows */ @@ -2390,7 +2390,7 @@ static struct idt_ntb_dev *idt_create_dev(struct pci_dev *pdev, /* Allocate memory for the IDT PCIe-device descriptor */ ndev = devm_kzalloc(&pdev->dev, sizeof(*ndev), GFP_KERNEL); - if (IS_ERR_OR_NULL(ndev)) { + if (!ndev) { dev_err(&pdev->dev, "Memory allocation failed for descriptor"); return ERR_PTR(-ENOMEM); } -- 2.20.1