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

Philipp Hahn
2026-03-10T11:57:36Z

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

Change generated with coccinelle.

To: "K. Y. Srinivasan" <kys@microsoft.com>
To: Haiyang Zhang <haiyangz@microsoft.com>
To: Wei Liu <wei.liu@kernel.org>
To: Dexuan Cui <decui@microsoft.com>
To: Long Li <longli@microsoft.com>
Cc: linux-hyperv@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
---
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