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From: "Rob Herring (Arm)" <robh@kernel.org>
To: Tomeu Vizoso <tomeu@tomeuvizoso.net>,
	Oded Gabbay <ogabbay@kernel.org>,  Frank Li <Frank.Li@nxp.com>,
	Thomas Zimmermann <tzimmermann@suse.de>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH 01/11] accel: ethosu: Fix ethosu_job_open() return value
Date: Thu, 27 Aug 2026 15:33:00 -0500	[thread overview]
Message-ID: <20260827-ethosu-fixes-v1-1-346f9ea8791c@kernel.org> (raw)
In-Reply-To: <20260827-ethosu-fixes-v1-0-346f9ea8791c@kernel.org>

A WARN_ON() returns a 0 or 1, not the original negative errno. Just drop
the WARN_ON() as the FD open will pass the return code to userspace and
there's only one possible source of the error (drm_sched_entity_init()).

Fixes: 5a5e9c0228e6 ("accel: Add Arm Ethos-U NPU driver")
Cc: stable@vger.kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 drivers/accel/ethosu/ethosu_job.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/accel/ethosu/ethosu_job.c b/drivers/accel/ethosu/ethosu_job.c
index 6a038c0384cc..99c8812691e5 100644
--- a/drivers/accel/ethosu/ethosu_job.c
+++ b/drivers/accel/ethosu/ethosu_job.c
@@ -368,12 +368,10 @@ int ethosu_job_open(struct ethosu_file_priv *ethosu_priv)
 {
 	struct ethosu_device *dev = ethosu_priv->edev;
 	struct drm_gpu_scheduler *sched = &dev->sched;
-	int ret;
 
-	ret = drm_sched_entity_init(&ethosu_priv->sched_entity,
-				    DRM_SCHED_PRIORITY_NORMAL,
-				    &sched, 1, NULL);
-	return WARN_ON(ret);
+	return drm_sched_entity_init(&ethosu_priv->sched_entity,
+				     DRM_SCHED_PRIORITY_NORMAL,
+				     &sched, 1, NULL);
 }
 
 void ethosu_job_close(struct ethosu_file_priv *ethosu_priv)

-- 
2.53.0


  reply	other threads:[~2026-08-27 20:33 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-27 20:32 [PATCH 00/11] accel: ethosu: Another batch of fixes Rob Herring (Arm)
2026-08-27 20:33 ` Rob Herring (Arm) [this message]
2026-08-27 20:48   ` [PATCH 01/11] accel: ethosu: Fix ethosu_job_open() return value Frank Li
2026-08-27 20:33 ` [PATCH 02/11] accel: ethosu: Drop IRQF_SHARED flag Rob Herring (Arm)
2026-08-27 20:49   ` Frank Li
2026-08-27 20:33 ` [PATCH 03/11] accel: ethosu: Ensure cmd stream ends with a stop op Rob Herring (Arm)
2026-08-27 20:52   ` Frank Li
2026-08-27 20:33 ` [PATCH 04/11] accel: ethosu: Ensure SRAM size is 0 on mapping failure Rob Herring (Arm)
2026-08-27 20:55   ` Frank Li
2026-08-27 20:33 ` [PATCH 05/11] accel: ethosu: Ensure SRAM region size matches job Rob Herring (Arm)
2026-08-27 20:57   ` Frank Li
2026-08-27 20:33 ` [PATCH 06/11] accel: ethosu: Fix probe error cleanup Rob Herring (Arm)
2026-08-27 21:08   ` Frank Li
2026-08-27 20:33 ` [PATCH 07/11] accel: ethosu: Factor buffer bounds checks Rob Herring (Arm)
2026-08-27 21:10   ` Frank Li
2026-08-27 20:33 ` [PATCH 08/11] accel: ethosu: Validate secondary streams Rob Herring (Arm)
2026-08-27 21:14   ` Frank Li
2026-08-27 20:33 ` [PATCH 09/11] accel: ethosu: Reject unsupported commands Rob Herring (Arm)
2026-08-27 21:16   ` Frank Li
2026-08-27 20:33 ` [PATCH 10/11] accel: ethosu: Validate all feature map tiles Rob Herring (Arm)
2026-08-27 20:33 ` [PATCH 11/11] accel: ethosu: Validate OFM transpose Rob Herring (Arm)

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