From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (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 3C14A2B9B7 for ; Thu, 30 Oct 2025 05:00:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761800432; cv=none; b=j/AwZC54GzW9jBX90N1ZDkZGXWOdHAKj7RmPtefcZgnOpC4Khixah2EePYg1ATbVmxb1URXqDxZDY4GiyIPONcRnLfLcWJz6qLDokbkQjeBrnghwS54tvmg7v9T8BHNyoewNKuOXjI5RHtJT6iydQ+q9IFqwTuNPi/HANXuPZJ4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761800432; c=relaxed/simple; bh=aIIDMY3AHK5dw1R7m3doBiBvTy/DW6Af897s/1Y0FmM=; h=Content-Type:MIME-Version:In-Reply-To:References:Subject:From:Cc: To:Date:Message-ID; b=VVzsXi4wQfhhvrXN4g+20WOMf56WQC4FfXxkXqneKX4L0LWMriTD95xSFT9M18QoZ9ct6kaE8wPJJ9JlfDtm5Qy0Nxu4gHYckR4iWbNclXypQyY4Kd601rbhwDj4n7wVLoK6Ng0hVEp/VimzC/fb7gh2PluIRkof52MwaEG6K9M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=fcyCZgxF; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="fcyCZgxF" Received: from mail.ideasonboard.com (unknown [IPv6:2401:4900:1c69:314e:ee86:ae6e:30:9d13]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 8765B6DF; Thu, 30 Oct 2025 05:58:36 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1761800316; bh=aIIDMY3AHK5dw1R7m3doBiBvTy/DW6Af897s/1Y0FmM=; h=In-Reply-To:References:Subject:From:Cc:To:Date:From; b=fcyCZgxF4TpjFmwHBuC4i48DKDr4kJjvw70dSw9AgEwoEjzO8tnC/CvDyArO0N7Ar yzi8VhGp38/iGMgzZIld8SGzlLgZlse3SMyA52aoZ08v6zImE4FWA+atzoXveV6lIV R2Nd8Jf3wXg6+EnhYwU99ZdvYJ4nFlq+ibaYeSTg= Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable In-Reply-To: References: <20251029-vchiq-destage-v3-0-da8d6c83c2c5@ideasonboard.com> Subject: Re: [PATCH v3 0/7] staging: Destage VCHIQ interface and MMAL From: Jai Luthra Cc: Florian Fainelli , Broadcom internal kernel review list , Greg Kroah-Hartman , Ray Jui , Scott Branden , linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, kernel-list@raspberrypi.com, Stefan Wahren , Dave Stevenson , Laurent Pinchart , Kieran Bingham , Phil Elwell , Umang Jain To: Dan Carpenter Date: Thu, 30 Oct 2025 10:30:22 +0530 Message-ID: <176180042213.8690.16888216388545206511@freya> User-Agent: alot/0.12.dev28+gd2c823fe Hi Dan, Thanks for the review. Quoting Dan Carpenter (2025-10-29 17:40:32) > I did a review of some Smatch warnings. These aren't published because > they generate too many false positives. Only number 3 and number 7 > are actual issues the rest are style nit-picks. 3 - 8 are for bcm2835-camera, which is altogether dropped from staging in PATCH 1/7. >=20 > 1. drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c:2728 vc= hiq_add_service_internal() info: returning a literal zero is cleaner > s/return service;/return NULL;/ >=20 > 2. drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:408 vchi= q_shutdown() info: returning a literal zero is cleaner > Delete the "ret" variable. >=20 > 3. drivers/staging/vc04_services/bcm2835-camera/controls.c:198 ctrl_set_i= so() warn: array off by one? 'iso_values[ctrl->val]' > There seems to be a mixup between iso_qmenu[] and iso_values[]. The one > is only used for ARRAY_SIZE() and the other is never checked for > ARRAY_SIZE(). >=20 > 4. drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c:337 buff= er_cb() warn: can 'buf' even be NULL? > Delete the NULL check. >=20 > 5. drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c:513 star= t_streaming() pedantic: propagate return from 'enable_camera' instead of re= turning '-EINVAL' > - if (enable_camera(dev) < 0) { > + ret =3D enable_camera(dev); > + if (ret) { > v4l2_err(&dev->v4l2_dev, "Failed to enable camera\n"); > - return -EINVAL; > + return ret; > } > 6. drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c:576 star= t_streaming() pedantic: propagate return from 'disable_camera' instead of r= eturning '-EINVAL' > Same. >=20 > 7. drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c:881 vidi= oc_querycap() error: uninitialized symbol 'major'. > drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c:881 vidi= oc_querycap() error: uninitialized symbol 'minor'. > No error checking on vchiq_mmal_version() >=20 > 8. drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c:1276 mma= l_setup_components() info: returning a literal zero is cleaner > s/return ret;/return 0;/ >=20 > regards, > dan carpenter Thanks, Jai