[PATCH 50/61] iommu: Prefer IS_ERR_OR_NULL over manual NULL check
From: Philipp Hahn <hidden>
Date: 2026-03-10 11:55:58
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-security-module, linux-sh, linux-sound, linux-trace-kernel, linux-usb, linux-wireless, lkml, ntfs3, sched-ext, target-devel, v9fs
Subsystem:
iommu subsystem, the rest · Maintainers:
Joerg Roedel, Will Deacon, Linus Torvalds
Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL check. Change generated with coccinelle. To: Joerg Roedel <joro@8bytes.org> To: Will Deacon <will@kernel.org> To: Robin Murphy <robin.murphy@arm.com> Cc: iommu@lists.linux.dev Cc: linux-kernel@vger.kernel.org Signed-off-by: Philipp Hahn <redacted> --- drivers/iommu/omap-iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 8231d7d6bb6a9202025643639a6b28e6faa84659..500a42b57a997696ff37c76f028a717ab71d01f9 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c@@ -881,7 +881,7 @@ static int omap_iommu_attach(struct omap_iommu *obj, u32 *iopgd) **/ static void omap_iommu_detach(struct omap_iommu *obj) { - if (!obj || IS_ERR(obj)) + if (IS_ERR_OR_NULL(obj)) return; spin_lock(&obj->iommu_lock);
--
2.43.0