From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f170.google.com (mail-pl1-f170.google.com [209.85.214.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 982FE39935C for ; Tue, 10 Mar 2026 12:54:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.170 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773147252; cv=none; b=DM/LNHeE8WVDFZXo8SVAfTkmE58iLGQOEwNp2676370w5eBkLn5chYeRqL3L2xpncfPE4P4SAHDrtSb95KUAxtyS4H+Err/cdoD4KxKeL7NWBL6AV1/kv+9hfiXj9Zv6eqqqNn6+SPVe5BvQ88DnkybPbsLQSqhu7b3xvMNO1y8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773147252; c=relaxed/simple; bh=TgoJchP8+G/BTHDKgmEWupOwORUqE0/FZPIUEYu9Z9g=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=asfQ/K/ent1JbF/QutyLNIJLFI1Rzhz775m9ZJZbgaWcVPtV8KOaNfkkp9tzFWvKDl2H2CKdD4hahAk/2CW1O7lQEmm7nReHUVaVegm9iOzV+N94L+PiOIDhG0fQ1+QY32opExhQvfxMP3PzHukA4h96JAP56dXmHCqWtojgLWA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=0+cOK+VW; arc=none smtp.client-ip=209.85.214.170 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="0+cOK+VW" Received: by mail-pl1-f170.google.com with SMTP id d9443c01a7336-2aeab6ff148so1355ad.1 for ; Tue, 10 Mar 2026 05:54:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1773147248; x=1773752048; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=mm6hm+LHoMGo5Ew01sq1dP9YSITnoqIDxYFDqmtgvh0=; b=0+cOK+VWVXA7uE31Sh5y2bmP9hRSr0LFsM2f3kDgfCZ6lyHaVbAytIQCv+2vF+eTEx oUic6e9ZAVnZqnGzIPB8kHUyMA2zwpMw5U/9RUdKEhoG2/xX9/VKIHC9XNEBOVXeDKo9 mU/QEMBf02iFKn4H5erDKYU3pW/pqjbI7j+6ZcB0Qt9z/KGqBlkshVJTzzKx2oXtAxlL E18h73O/s3dn+xBEwK308w7agQS5m2RYZzHNrLUdhfdZKeG/e+Dr27X21QpoIwd1KCAl PxttLdZl6PZf2goM/cRw6Bbw12/00xnTFdgSr8ytAWjU88JMxI5kTd4reOjRdKpNjh+N Ix/w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773147248; x=1773752048; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=mm6hm+LHoMGo5Ew01sq1dP9YSITnoqIDxYFDqmtgvh0=; b=UADp0c4l8AlHk3ncgX3E4F+7T5N20kDvQJGSd/TGnYpR1LydyClarq2r7IE3qKVAx9 pntd0aScp4SnlifoQYnHoMmpJ1PNZauI45Vg1P2/wP2Y75UlIqrFqGR3P4bqsniidAvt mpPiDfqFc9bthy89Oh7tXrbddKqxBnY2Yr9xk0kGWUJByJyvf1NYXCKizMhRTPR0XMWy B4455YoDPPj5FqpA/NOHtTkSRzXwtLeBD2LinUKvoII+qjfmCWLL1GQ3RFyVALGiuhCi ppv/z8Kr7gmncJRu9OzQpm+vtAxyQ9O94y9/TShm8uC1C3ZAiT/osggEB55wRddT2MY8 kJ3A== X-Forwarded-Encrypted: i=1; AJvYcCVDcwlbDi4AKrzwZJeFMhhHS8WZGiVxHR+QWD58Q5QAGxr4Fna8f3Xsj/JPhAxyCgWcGmJYJ9sukstc@vger.kernel.org X-Gm-Message-State: AOJu0Yzgw+OgHIWKQitctNk6IPGFvMoYBx3q8K+KpjW62vMFp2jMNvIf bCCde0SiqJQc7Mju5WCcEgEOIgZ7C6MD+MJ9jJlaNeJlX0GOOSEahFAsspGB/lIgvQ== X-Gm-Gg: ATEYQzxovzE2PgzSpDKaUcBXiB6jehLz7Z3nNYEfYbTuLXqw/BdYq6Tjn0FND3wdtpx w2diFwBSbqniTrdOq8ZqBddviyrVEua8jimgZtoC9JJSlLrXFUK0JKZqGBx8hWmoVW8iXVY34At kHz0lfOwhIMaCJ3E/IarmMJAgTBWqSmlMz+rtonf1BaYJwXciO+xA5gXs2Dkkx8ikhpUNug1Mka 2yJKWLqDuYFxfPFX18bWIPgP2NCf9ht9HxTiOhxgW4XJBwNcVeHEkJIKhFZhMRyYOV5FsvH1GtE Bq0cDrTFU1QkipJ6RFNkoHv+kxjsKJLq8h8+83EV8CX2x3kWoFN7X7I/YjJZ/tpnOsUnWfsYpOU JZWcX0YpaCc7vPsOPQBagPy35dpOWbcuKSbsOppHZ5nEn0XoGuM8GQ/xaRix3TzhUOo82anWGs8 saIozU3+tpqWC/w14a7Q068wTdZqz2RSi9jJZRFFxH3bG4UNSoTNRP6SvMBQ== X-Received: by 2002:a17:902:ebd2:b0:2ae:45bb:bc4e with SMTP id d9443c01a7336-2aea30ebe48mr3008685ad.24.1773147247400; Tue, 10 Mar 2026 05:54:07 -0700 (PDT) Received: from google.com (10.129.124.34.bc.googleusercontent.com. [34.124.129.10]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c739e0cb73dsm12445679a12.11.2026.03.10.05.53.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Mar 2026 05:54:06 -0700 (PDT) Date: Tue, 10 Mar 2026 12:53:54 +0000 From: Pranjal Shrivastava To: Philipp Hahn Cc: amd-gfx@lists.freedesktop.org, apparmor@lists.ubuntu.com, bpf@vger.kernel.org, ceph-devel@vger.kernel.org, cocci@inria.fr, dm-devel@lists.linux.dev, dri-devel@lists.freedesktop.org, gfs2@lists.linux.dev, intel-gfx@lists.freedesktop.org, intel-wired-lan@lists.osuosl.org, iommu@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-block@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-clk@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-leds@vger.kernel.org, linux-media@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, linux-mtd@lists.infradead.org, linux-nfs@vger.kernel.org, linux-omap@vger.kernel.org, linux-phy@lists.infradead.org, linux-pm@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linux-sctp@vger.kernel.org, linux-security-module@vger.kernel.org, linux-sh@vger.kernel.org, linux-sound@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-trace-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, ntfs3@lists.linux.dev, samba-technical@lists.samba.org, sched-ext@lists.linux.dev, target-devel@vger.kernel.org, tipc-discussion@lists.sourceforge.net, v9fs@lists.linux.dev, Alex Williamson Subject: Re: [PATCH 46/61] vfio: Prefer IS_ERR_OR_NULL over manual NULL check Message-ID: References: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de> <20260310-b4-is_err_or_null-v1-46-bd63b656022d@avm.de> Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260310-b4-is_err_or_null-v1-46-bd63b656022d@avm.de> On Tue, Mar 10, 2026 at 12:49:12PM +0100, Philipp Hahn wrote: > Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL > check. > > Change generated with coccinelle. > > To: Alex Williamson > Cc: kvm@vger.kernel.org > Cc: linux-kernel@vger.kernel.org > Signed-off-by: Philipp Hahn > --- > drivers/vfio/vfio_main.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c > index 742477546b15d4dbaf9ebcfb2e67627db71521e0..d71922dfde5885967398deddec3e9e04b05adfec 100644 > --- a/drivers/vfio/vfio_main.c > +++ b/drivers/vfio/vfio_main.c > @@ -923,7 +923,7 @@ vfio_ioctl_device_feature_mig_device_state(struct vfio_device *device, > > /* Handle the VFIO_DEVICE_FEATURE_SET */ > filp = device->mig_ops->migration_set_state(device, mig.device_state); > - if (IS_ERR(filp) || !filp) > + if (IS_ERR_OR_NULL(filp)) > goto out_copy; > > return vfio_ioct_mig_return_fd(filp, arg, &mig); > Reviewed-by: Pranjal Shrivastava The cleanup alone looks fine, but I'm not sure if the maintainers would be happy about the tree-wide spam, since each patch might go through a different tree. I'd wait for Alex's preference/ack on that. Thanks, Praan