From patchwork Mon Dec 27 09:06:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miaoqian Lin X-Patchwork-Id: 12699632 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B9C9C433F5 for ; Mon, 27 Dec 2021 09:06:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235726AbhL0JGv (ORCPT ); Mon, 27 Dec 2021 04:06:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34714 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232561AbhL0JGu (ORCPT ); Mon, 27 Dec 2021 04:06:50 -0500 Received: from mail-pj1-x1032.google.com (mail-pj1-x1032.google.com [IPv6:2607:f8b0:4864:20::1032]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BFE0AC06173E; Mon, 27 Dec 2021 01:06:50 -0800 (PST) Received: by mail-pj1-x1032.google.com with SMTP id gj24so12997866pjb.0; Mon, 27 Dec 2021 01:06:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id; bh=3D8vbQ9qKo6LF9O+DoOS9tr7PDla/HO9+uH+KuCqSe0=; b=DEWSsmmMFYIswFxycNafQNmYpClD1/S/NAHUHAsIqJQhh0/T+dazeQt4K7m+rnfElJ s86k7SLS5Ey2p7jyb7DQKyBs5YRi2x/+aWsRaV7dOfrlqBNyRrgPqXjLN4JiwjWALcTw 29s0uPeVemwTmgaYbISKBE/Fmgta9+wNElhUbheCTnQJeM+Ck4EZwC7oZlbRqrXqtvrX QJ0/v63yqR0sm6lTf9jQbfbDogL6or48G0wIcsxhZ8jY7dPDLrukue/w4KlL7o3rOYsi v3v9Q1UmEClroFrkhiygrgy61UKHhB7Li8OiDNhkyQMHmpG70X8tarJ98rK3ZSE2xDU9 Ee1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=3D8vbQ9qKo6LF9O+DoOS9tr7PDla/HO9+uH+KuCqSe0=; b=J4XwUQegR9WKPpBAAHkyti6GMX794F763r5e1Yck5zsw5kmVR6KJAhYQeXC8zEm/Zj MDqQsZcORB5I2XU3a6X0Gg6v/KsOWQ6r9IlePURjjpOlNOxKt9ih4TXG4+FaanUhqD1D wSPHaOZ7HBDukJNnIrUx36K7V5Wxua2dZxBHlvKMsQLeKvDoWJGyJ4Mql5I0dSlAaXoy OYdFV4MwZsqm1HF1uDM0LAYXrPa9rlXS12BWM9A18ZjPT8tJLyOMHhaQmXn0ITmiDRUL PvdAaIlm1Xb6Fn9VKZsKlKZMZBkCQZrViiovxedDk+8fL1f1K7KNRjz4/ITCT1skUm/e vWEw== X-Gm-Message-State: AOAM532/VGmd87kbtpOXWnCmoM3y42mdXeVr+eHyYZEqP5UTrQq7BxxF Mt2tLnJkbZ5AjnZnCupQijjATB72qUf3ew0X X-Google-Smtp-Source: ABdhPJxwbV5ca35CixfpCV/cxi6L+U4E2RoEC7FsSMO/PFEwMOpcgDcOU77nFWtukdxfxVjciUHxmA== X-Received: by 2002:a17:90a:c68a:: with SMTP id n10mr20140084pjt.119.1640596010318; Mon, 27 Dec 2021 01:06:50 -0800 (PST) Received: from localhost.localdomain ([159.226.95.43]) by smtp.googlemail.com with ESMTPSA id l1sm13679029pgn.35.2021.12.27.01.06.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Dec 2021 01:06:50 -0800 (PST) From: Miaoqian Lin Cc: linmq006@gmail.com, Ohad Ben-Cohen , Bjorn Andersson , Mathieu Poirier , linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] remoteproc: Fix NULL vs IS_ERR() checking in rproc_create_trace_file Date: Mon, 27 Dec 2021 09:06:45 +0000 Message-Id: <20211227090645.18600-1-linmq006@gmail.com> X-Mailer: git-send-email 2.17.1 To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org The debugfs_create_file() function doesn't return NULL. It returns error pointers. Signed-off-by: Miaoqian Lin --- drivers/remoteproc/remoteproc_debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c index b5a1e3b697d9..a2409fe2f57b 100644 --- a/drivers/remoteproc/remoteproc_debugfs.c +++ b/drivers/remoteproc/remoteproc_debugfs.c @@ -390,7 +390,7 @@ struct dentry *rproc_create_trace_file(const char *name, struct rproc *rproc, tfile = debugfs_create_file(name, 0400, rproc->dbg_dir, trace, &trace_rproc_ops); - if (!tfile) { + if (IS_ERR(tfile)) { dev_err(&rproc->dev, "failed to create debugfs trace entry\n"); return NULL; }