Thread (124 messages) flat view 124 messages, 35 authors, 2026-04-16
STALE156d

[PATCH 43/61] s390: Prefer IS_ERR_OR_NULL over manual NULL check

From: Philipp Hahn <hidden>
Date: 2026-03-10 11:55:54
Also in: amd-gfx, bpf, ceph-devel, dm-devel, dri-devel, gfs2, intel-wired-lan, kvm, linux-block, linux-bluetooth, linux-btrfs, linux-cifs, linux-clk, linux-ext4, linux-fsdevel, linux-gpio, linux-hyperv, linux-input, linux-iommu, linux-leds, linux-media, linux-mips, linux-mm, linux-modules, linux-nfs, linux-omap, linux-phy, linux-pm, linux-rockchip, linux-s390, linux-scsi, linux-sctp, linux-sh, linux-sound, linux-trace-kernel, linux-usb, linux-wireless, lkml, netdev, ntfs3, sched-ext, target-devel, v9fs
Subsystem: s390 architecture, the rest · Maintainers: Heiko Carstens, Vasily Gorbik, Alexander Gordeev, Linus Torvalds

Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.

Change generated with coccinelle.

To: Heiko Carstens <hca@linux.ibm.com>
To: Vasily Gorbik <gor@linux.ibm.com>
To: Alexander Gordeev <agordeev@linux.ibm.com>
To: Christian Borntraeger <borntraeger@linux.ibm.com>
To: Sven Schnelle <svens@linux.ibm.com>
Cc: linux-s390@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <redacted>
---
 drivers/s390/char/tape_class.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/s390/char/tape_class.c b/drivers/s390/char/tape_class.c
index b69430220a813e764ec1514c27ad486ac9e95575..aad4fff1faea69ae055b517910ec6467b14cb6e8 100644
--- a/drivers/s390/char/tape_class.c
+++ b/drivers/s390/char/tape_class.c
@@ -100,7 +100,7 @@ EXPORT_SYMBOL(register_tape_dev);
 
 void unregister_tape_dev(struct device *device, struct tape_class_device *tcd)
 {
-	if (tcd != NULL && !IS_ERR(tcd)) {
+	if (!IS_ERR_OR_NULL(tcd)) {
 		sysfs_remove_link(&device->kobj, tcd->mode_name);
 		device_destroy(&tape_class, tcd->char_device->dev);
 		cdev_del(tcd->char_device);
-- 
2.43.0
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