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([1.243.227.27]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3614198f775sm7730486a91.16.2026.04.19.00.19.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Apr 2026 00:19:57 -0700 (PDT) From: Gyeyoung Baek To: Tomeu Vizoso , Boris Brezillon , Rob Herring , Steven Price , =?UTF-8?q?Adri=C3=A1n=20Larumbe?= Cc: Oded Gabbay , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Gyeyoung Baek , stable@vger.kernel.org Subject: [PATCH v1 1/2] accel/rocket: Fix prep_bo ioctl leaking positive return from dma_resv_wait_timeout() Date: Sun, 19 Apr 2026 16:17:15 +0900 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" dma_resv_wait_timeout() returns a positive 'remaining jiffies' value on success, 0 on timeout, and -errno on failure. rocket_ioctl_prep_bo() returns this 'long' result from an int-typed ioctl handler, so positive values reach userspace as bogus errors. Explicitly set ret to 0 on the success path. Fixes: 525ad89dd904 ("accel/rocket: Add IOCTLs for synchronizing memory acc= esses") Cc: stable@vger.kernel.org Signed-off-by: Gyeyoung Baek Reviewed-by: Tomeu Vizoso --- drivers/accel/rocket/rocket_gem.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/accel/rocket/rocket_gem.c b/drivers/accel/rocket/rocke= t_gem.c index b6a385d2e..c80847192 100644 --- a/drivers/accel/rocket/rocket_gem.c +++ b/drivers/accel/rocket/rocket_gem.c @@ -145,6 +145,8 @@ int rocket_ioctl_prep_bo(struct drm_device *dev, void *= data, struct drm_file *fi ret =3D dma_resv_wait_timeout(gem_obj->resv, DMA_RESV_USAGE_WRITE, true, = timeout); if (!ret) ret =3D timeout ? -ETIMEDOUT : -EBUSY; + else if (ret > 0) + ret =3D 0; =20 shmem_obj =3D &to_rocket_bo(gem_obj)->base; =20 --=20 2.43.0 From nobody Tue Jun 16 11:17:52 2026 Received: from mail-pj1-f48.google.com (mail-pj1-f48.google.com [209.85.216.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8903131BCAE for ; Sun, 19 Apr 2026 07:20:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776583202; cv=none; b=ET/s6oHMxJM2YsoPWz9xhiu1vqCQhaQsIVTGlKRaBzU/gjKXibc0C+8vOh1+c0IQMRoBr7C4PSMdofiESlt1S3Wo16LvkWHigBDL1wOYfOKofVcOdSxo79Hwgvj0mTiSIdyrl85iEdij10ORVjw4UczMMpv0/n4Yx3nLvpDBnY8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776583202; c=relaxed/simple; bh=/6WqY7FVaM7RrmmrXcARtBbEz0lWyS0aYGllGtWbYaE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PGMwxkbjCz8kw6Up4KwDOsM8IIomwL25T0BfDlrdANARhtwVyOlr67qIqm28Cq2Yvhm8xJfwk+Np1XaNriP4Ap5t19pIJBwOKR3HsbSf7Ac6pBACAQzLIV3+23uSxT/0HyjXdQyW63SgvWfBXXMKlI1r9daAC0uQvSvUJsQGUgk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=fTY2bI2F; arc=none smtp.client-ip=209.85.216.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="fTY2bI2F" Received: by mail-pj1-f48.google.com with SMTP id 98e67ed59e1d1-354a18c48b5so2003577a91.1 for ; Sun, 19 Apr 2026 00:20:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1776583201; x=1777188001; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=W0uptcA/nPT9b5VoNX/H/wV7A62sl2YDH38WqrqI4Qc=; b=fTY2bI2FFSWSQDqw6FI1Yy8SjIZU9qv5aBH4fQjlbDJ0SG5jfPqTFEjBCpQymm+ZK3 5xMLnzpBTwb0M2Nm7SW75DjTTeFhrIGWapvH/xfqOpYLEsbIyhsb542S3dUcxSfYB4qq Px3jE86EoApD3Adt22itKJpD8brVOZ+/U+zLxm1dVUisF/gHQ4m+V30LUMf5WuWECWBm KpefGV+NYxeVrdzm4flneab6opnA1kRvQnr/fBA2X82flmTw/ebdYVLed1Y2Fczgsmdk pWqX2IQHJ/4NF+30yG6Yc6ZO+qsEPyMKvKtT66exZePtTFsd4cIanF/rNZgDVPOVUCoh MWuA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776583201; x=1777188001; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=W0uptcA/nPT9b5VoNX/H/wV7A62sl2YDH38WqrqI4Qc=; b=dI5OjeRXAqwcKsvZDCdFd9CLlSFWVJxtb+VztxG3a4b4ggzu4EPOaphijed1oDBTUR d3GK4c/UzCXqNqfR6SwLF3zohyBAs0SsAwxe+pz/B4Wvn9RhytJVfPj/7HaKS3grAB5/ ecIBR2w6TVPbahxa81uwoedFw9q87ug3hY3WnO2R1J7c8IJTiXSBW+I3f6EbBtP59FkJ dXNIeUeUnEToDpJHrH1FrbJIA7xOvrkh2DjLmVhgVmeRyG67GS+qO5KnrBbxTQ6pdQM2 hOZHbSOcG4+bWGfSJd9lOpWbojJZAJmSarJjHs5b3UU7ksJD40aDELTMiYiKnCjmxOBh lDMw== X-Forwarded-Encrypted: i=1; AFNElJ+S0JFJTcnVtCGdicADlTz6rA8Q5SyMp7HKKlR4xwJJ+sSF166sG0HXiL2ddsNLXm7BwQOWSKC1a5bqW8o=@vger.kernel.org X-Gm-Message-State: AOJu0Yy9g8GuEs1ekNYdR2vSnBaij3kdm9iL2bEJCJyhutWA2hXucLkL j3URf5ROk2vClnsEJJTwrGXtbBFWWuLS0JZvxaoqiZJqk9vvKFtu/Oid X-Gm-Gg: AeBDietmXj3xYqV3TJ7zzB4elKX24T5DP8tn7J4lGAXdyZIOIsbBEH8ZZeIHWUM3uy4 EyG09xsrOLCBoIehKL00CH7WDMVvVUw+P8UqmCgobFbdDvHL87As6qALf5NqWwHpVB7a6eBbfyk QVCQpyAIpfjX8VNC/Tue1WOY8VjFu2Z/MLCTiRFdizCKaK4BwWJJtBQGZBCDHgvHcdUrsFH4/sm 2DJ5aY0Us/rN0QkLEjxxndVNOidyOSkGVhX/lhl5RGpsSmOcLPp2Lo9UDY5rOhRrXxqpzBDdzdP MAs3YpLOms2qdBH3LvtMfGebHAEnZwRCXqujztmNAqzQqbxeqsaQGTI51L8faNbgFmwGsD2k/Nz qno4g/zZKrHeVM0eK93Mczx2h3P2jO/DWY+Ws6CMkmz51wBGuDfey079k3xFdSzc7JHY+blHRtj uSLfDysbOXQoxiIhoz7bUbyRUwevaB5ce2g2xu X-Received: by 2002:a17:90b:5185:b0:35f:b7f5:9b3 with SMTP id 98e67ed59e1d1-361403b18c9mr9692965a91.3.1776583200994; Sun, 19 Apr 2026 00:20:00 -0700 (PDT) Received: from gye-SER8.. ([1.243.227.27]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3614198f775sm7730486a91.16.2026.04.19.00.19.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Apr 2026 00:20:00 -0700 (PDT) From: Gyeyoung Baek To: Tomeu Vizoso , Boris Brezillon , Rob Herring , Steven Price , =?UTF-8?q?Adri=C3=A1n=20Larumbe?= Cc: Oded Gabbay , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Gyeyoung Baek , stable@vger.kernel.org Subject: [PATCH v1 2/2] drm/panfrost: Fix wait_bo ioctl leaking positive return from dma_resv_wait_timeout() Date: Sun, 19 Apr 2026 16:17:16 +0900 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" dma_resv_wait_timeout() returns a positive 'remaining jiffies' value on success, 0 on timeout, and -errno on failure. panfrost_ioctl_wait_bo() returns this 'long' result from an int-typed ioctl handler, so positive values reach userspace as bogus errors. Explicitly set ret to 0 on the success path. Fixes: f3ba91228e8e ("drm/panfrost: Add initial panfrost driver") Cc: stable@vger.kernel.org Signed-off-by: Gyeyoung Baek Reviewed-by: Adri=C3=A1n Larumbe Reviewed-by: Boris Brezillon Reviewed-by: Steven Price --- drivers/gpu/drm/panfrost/panfrost_drv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panf= rost/panfrost_drv.c index 3d0bdba2a..784e36d72 100644 --- a/drivers/gpu/drm/panfrost/panfrost_drv.c +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c @@ -390,6 +390,8 @@ panfrost_ioctl_wait_bo(struct drm_device *dev, void *da= ta, true, timeout); if (!ret) ret =3D timeout ? -ETIMEDOUT : -EBUSY; + else if (ret > 0) + ret =3D 0; =20 drm_gem_object_put(gem_obj); =20 --=20 2.43.0