From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EBB1D1C830E; Wed, 20 Nov 2024 13:00:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732107607; cv=none; b=GRtsnuw4Y/x3ViAKCF9My2HcyFxq/Jv7GnwP9pNPnOHteQ3vJGG3FWEFmm/WfOZAscAXZF9eEnbBI7a7iSGr1b9bEicqSR8TGNIflEWPgA0jzQHo/59vgkK3u9TDeTYTFdKBwsEiifi0CAVCLPLQZlqZ8FKHvdFQLYI8mek2fqk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732107607; c=relaxed/simple; bh=K7ChAq73IUPqd9HpV0n/k9Bz5TIn3ZedeDjPmIpkxNE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MsgcG+hCYogAJ/WIaK7ofuho9FPAoCblmG76xA7fy8xbiE2+yqFgVQKo48Y7Wi0q0tA2rAFn3ksXTwzZ6r5ZdGhJ3RLp8NVcuVtXUxoU2vYYbvaraV0IbIfEcalxN8MPqERXir3VnQ3A4AhRWCjmlhV0vOAZ/d/yoeyWXeztDNo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ROOAstTK; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ROOAstTK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 74942C4CED2; Wed, 20 Nov 2024 13:00:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1732107606; bh=K7ChAq73IUPqd9HpV0n/k9Bz5TIn3ZedeDjPmIpkxNE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ROOAstTKa9SZqBd0PV79c2u+59ZZOKsXHdDV3UPBc57vS+KxdWFDpGzwb60UZDftO T5+kFmgrzvR1CWvPTKW3j1FjPTdDV7Kio5BDqeas7MbmXkjhew5UVxeq1biFVMKow8 IdsUCE/VHygPqclY2JdY+jX4uqM2qdgA0yzuYc7M= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Stefan Wahren , Sasha Levin Subject: [PATCH 6.6 57/82] staging: vchiq_arm: Get the rid off struct vchiq_2835_state Date: Wed, 20 Nov 2024 13:57:07 +0100 Message-ID: <20241120125630.894936545@linuxfoundation.org> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241120125629.623666563@linuxfoundation.org> References: <20241120125629.623666563@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stefan Wahren [ Upstream commit 4e2766102da632f26341d5539519b0abf73df887 ] The whole benefit of this encapsulating struct is questionable. It just stores a flag to signalize the init state of vchiq_arm_state. Beside the fact this flag is set too soon, the access to uninitialized members should be avoided. So initialize vchiq_arm_state properly before assign it directly to vchiq_state. Signed-off-by: Stefan Wahren Link: https://lore.kernel.org/r/20240621131958.98208-6-wahrenst@gmx.net Signed-off-by: Greg Kroah-Hartman Stable-dep-of: 404b739e8955 ("staging: vchiq_arm: Use devm_kzalloc() for vchiq_arm_state allocation") Signed-off-by: Sasha Levin --- .../interface/vchiq_arm/vchiq_arm.c | 25 +++++-------------- 1 file changed, 6 insertions(+), 19 deletions(-) diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c index aa2313f3bcab8..0a97fb237f5e7 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c @@ -115,11 +115,6 @@ struct vchiq_arm_state { int first_connect; }; -struct vchiq_2835_state { - int inited; - struct vchiq_arm_state arm_state; -}; - struct vchiq_pagelist_info { struct pagelist *pagelist; size_t pagelist_buffer_size; @@ -580,29 +575,21 @@ vchiq_arm_init_state(struct vchiq_state *state, int vchiq_platform_init_state(struct vchiq_state *state) { - struct vchiq_2835_state *platform_state; + struct vchiq_arm_state *platform_state; - state->platform_state = kzalloc(sizeof(*platform_state), GFP_KERNEL); - if (!state->platform_state) + platform_state = kzalloc(sizeof(*platform_state), GFP_KERNEL); + if (!platform_state) return -ENOMEM; - platform_state = (struct vchiq_2835_state *)state->platform_state; - - platform_state->inited = 1; - vchiq_arm_init_state(state, &platform_state->arm_state); + vchiq_arm_init_state(state, platform_state); + state->platform_state = (struct opaque_platform_state *)platform_state; return 0; } static struct vchiq_arm_state *vchiq_platform_get_arm_state(struct vchiq_state *state) { - struct vchiq_2835_state *platform_state; - - platform_state = (struct vchiq_2835_state *)state->platform_state; - - WARN_ON_ONCE(!platform_state->inited); - - return &platform_state->arm_state; + return (struct vchiq_arm_state *)state->platform_state; } void -- 2.43.0