[PATCH 53/61] hyperv: Prefer IS_ERR_OR_NULL over manual NULL check

Philipp Hahn <[email protected]> Tue, 10 Mar 2026 12:49:19 +0100
Newsgroups org.kernel.vger.linux-sctp,dev.linux.lists.dm-devel,dev.linux.lists.gfs2,dev.linux.lists.iommu,dev.linux.lists.ntfs3,dev.linux.lists.sched-ext,dev.linux.lists.v9fs,org.freedesktop.lists.amd-gfx,org.freedesktop.lists.dri-devel,org.infradead.lists.linux-mtd,org.infradead.lists.linux-phy,org.infradead.lists.linux-rockchip,org.kernel.vger.bpf,org.kernel.vger.ceph-devel,org.kernel.vger.kvm,org.kernel.vger.linux-block,org.kernel.vger.linux-bluetooth,org.kernel.vger.linux-btrfs,org.kernel.vger.linux-cifs,org.kernel.vger.linux-clk,org.kernel.vger.linux-ext4,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-gpio,org.kernel.vger.linux-hyperv,org.kernel.vger.linux-input,org.kernel.vger.linux-kernel,org.kernel.vger.linux-leds,org.kernel.vger.linux-media,org.kernel.vger.linux-mips,org.kernel.vger.linux-modules,org.kernel.vger.linux-nfs,org.kernel.vger.linux-omap,org.kernel.vger.linux-pm,org.kernel.vger.linux-s390,org.kernel.vger.linux-scsi,org.kernel.vger.linux-security-module,org.kernel.vger.linux-sh,org.kernel.vger.linux-sound,org.kernel.vger.linux-trace-kernel,org.kernel.vger.linux-usb,org.kernel.vger.linux-wireless,org.kernel.vger.netdev,org.kernel.vger.target-devel,org.kvack.linux-mm,org.osuosl.intel-wired-lan,org.ozlabs.lists.linux-erofs
Message-ID <[email protected]>
Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.

Change generated with coccinelle.

To: "K. Y. Srinivasan" <[email protected]>
To: Haiyang Zhang <[email protected]>
To: Wei Liu <[email protected]>
To: Dexuan Cui <[email protected]>
To: Long Li <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Philipp Hahn <[email protected]>
---
 drivers/hv/mshv_eventfd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hv/mshv_eventfd.c b/drivers/hv/mshv_eventfd.c
index d8471546e6a0c7e6eca933c640459f1d02152cb2..24dff7a498ac9c3edd31f4c9bc2f23729ba2a6ce 100644
--- a/drivers/hv/mshv_eventfd.c
+++ b/drivers/hv/mshv_eventfd.c
@@ -516,10 +516,10 @@ static int mshv_irqfd_assign(struct mshv_partition *pt,
 	if (irqfd->irqfd_resampler)
 		mshv_irqfd_resampler_shutdown(irqfd);
 
-	if (resamplefd && !IS_ERR(resamplefd))
+	if (!IS_ERR_OR_NULL(resamplefd))
 		eventfd_ctx_put(resamplefd);
 
-	if (eventfd && !IS_ERR(eventfd))
+	if (!IS_ERR_OR_NULL(eventfd))
 		eventfd_ctx_put(eventfd);
 
 out:

-- 
2.43.0