RE: [Intel-wired-lan] [PATCH 46/61] vfio: Prefer IS_ERR_OR_NULL over manual NULL check

[Loktionov, Aleksandr]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@xxxxxxxxxx> On Behalf
> Of Philipp Hahn
> Sent: Tuesday, March 10, 2026 12:49 PM
> To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx; apparmor@xxxxxxxxxxxxxxxx;
> bpf@xxxxxxxxxxxxxxx; ceph-devel@xxxxxxxxxxxxxxx; cocci@xxxxxxxx; dm-
> devel@xxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx;
> gfs2@xxxxxxxxxxxxxxx; intel-gfx@xxxxxxxxxxxxxxxxxxxxx; intel-wired-
> lan@xxxxxxxxxxxxxxxx; iommu@xxxxxxxxxxxxxxx; kvm@xxxxxxxxxxxxxxx;
> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-block@xxxxxxxxxxxxxxx;
> linux-bluetooth@xxxxxxxxxxxxxxx; linux-btrfs@xxxxxxxxxxxxxxx; linux-
> cifs@xxxxxxxxxxxxxxx; linux-clk@xxxxxxxxxxxxxxx; linux-
> erofs@xxxxxxxxxxxxxxxx; linux-ext4@xxxxxxxxxxxxxxx; linux-
> fsdevel@xxxxxxxxxxxxxxx; linux-gpio@xxxxxxxxxxxxxxx; linux-
> hyperv@xxxxxxxxxxxxxxx; linux-input@xxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; linux-leds@xxxxxxxxxxxxxxx; linux-
> media@xxxxxxxxxxxxxxx; linux-mips@xxxxxxxxxxxxxxx; linux-mm@xxxxxxxxx;
> linux-modules@xxxxxxxxxxxxxxx; linux-mtd@xxxxxxxxxxxxxxxxxxx; linux-
> nfs@xxxxxxxxxxxxxxx; linux-omap@xxxxxxxxxxxxxxx; linux-
> phy@xxxxxxxxxxxxxxxxxxx; linux-pm@xxxxxxxxxxxxxxx; linux-
> rockchip@xxxxxxxxxxxxxxxxxxx; linux-s390@xxxxxxxxxxxxxxx; linux-
> scsi@xxxxxxxxxxxxxxx; linux-sctp@xxxxxxxxxxxxxxx; linux-security-
> module@xxxxxxxxxxxxxxx; linux-sh@xxxxxxxxxxxxxxx; linux-
> sound@xxxxxxxxxxxxxxx; linux-stm32@xxxxxxxxxxxxxxxxxxxxxxxxxxxx;
> linux-trace-kernel@xxxxxxxxxxxxxxx; linux-usb@xxxxxxxxxxxxxxx; linux-
> wireless@xxxxxxxxxxxxxxx; netdev@xxxxxxxxxxxxxxx;
> ntfs3@xxxxxxxxxxxxxxx; samba-technical@xxxxxxxxxxxxxxx; sched-
> ext@xxxxxxxxxxxxxxx; target-devel@xxxxxxxxxxxxxxx; tipc-
> discussion@xxxxxxxxxxxxxxxxxxxxx; v9fs@xxxxxxxxxxxxxxx; Philipp Hahn
> <phahn-oss@xxxxxx>
> Cc: Alex Williamson <alex@xxxxxxxxxxx>
> Subject: [Intel-wired-lan] [PATCH 46/61] vfio: Prefer IS_ERR_OR_NULL
> over manual NULL check
> 
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
> 
> Change generated with coccinelle.
> 
> To: Alex Williamson <alex@xxxxxxxxxxx>
> Cc: kvm@xxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Signed-off-by: Philipp Hahn <phahn-oss@xxxxxx>
> ---
>  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..d71922dfde5885967398deddec3e
> 9e04b05adfec 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);
> 
> --
> 2.43.0

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@xxxxxxxxx>