From patchwork Mon Jun 17 14:45:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marek_Beh=C3=BAn?= X-Patchwork-Id: 13700867 X-Patchwork-Delegate: arnd@arndb.de Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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.lore.kernel.org (Postfix) with ESMTPS id AF7C2C2BA15 for ; Mon, 17 Jun 2024 14:46:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) id A20BFC4AF48; Mon, 17 Jun 2024 14:46:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 91876C4AF1D; Mon, 17 Jun 2024 14:46:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718635562; bh=XewggOxf0J4sZug5qVvIcqxtdUZ4VRaB7T8zPOqw4LY=; h=From:List-Id:To:Cc:Subject:Date:In-Reply-To:References:From; b=fbNZoyjKydJvRMLiMCs5qlBlmdxnxyNNdVtoUzXjMyckMPTyshrpR+lmx8PVz9qax pCI8NZRbTZ1Z2g03pgYwxVg9z3e7ZTV/qL+S6qiHWnBCpB+7eSxV4Xhce7JmWubTQU yjnVIyjtqt4v8VO7lGQH8KrcAUrSk2lgGPoXt91OOAoUlXeqR8PgcU8rCyOrxYvOtG c6xt/y15PdQR60ZVm+JXrMzTC/ABem1nM3KAR45/xHXoOMmPrgu3vH6brF1M+5G/mK dk1pkOvbsvz7VeWXjUVok6vGGM+DRbsw92T498aicHIQS3X9PgjCCUX6pWcg0l6BVh kgtaJiktvSvyw== From: =?utf-8?q?Marek_Beh=C3=BAn?= List-Id: To: Gregory CLEMENT , Andrew Lunn , Arnd Bergmann , soc@kernel.org, arm@kernel.org, Andy Shevchenko , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= Cc: =?utf-8?q?Marek_Beh=C3=BAn?= Subject: [PATCH v3 10/17] firmware: turris-mox-rwtm: Convert rest to devm_* and get rid of driver .remove() Date: Mon, 17 Jun 2024 16:45:25 +0200 Message-ID: <20240617144532.17385-11-kabel@kernel.org> X-Mailer: git-send-email 2.44.2 In-Reply-To: <20240617144532.17385-1-kabel@kernel.org> References: <20240617144532.17385-1-kabel@kernel.org> MIME-Version: 1.0 Use devm resource management for driver's mailbox. This allows us to get rid of the driver's .remove() method and the gotos in .probe(). Signed-off-by: Marek Behún --- drivers/firmware/turris-mox-rwtm.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/drivers/firmware/turris-mox-rwtm.c b/drivers/firmware/turris-mox-rwtm.c index 77fdd5c66971..9a68784a9619 100644 --- a/drivers/firmware/turris-mox-rwtm.c +++ b/drivers/firmware/turris-mox-rwtm.c @@ -426,6 +426,11 @@ static inline void rwtm_register_debugfs(struct mox_rwtm *rwtm) } #endif +static void rwtm_devm_mbox_release(void *mbox) +{ + mbox_free_channel(mbox); +} + static void rwtm_firmware_symlink_drop(void *parent) { sysfs_remove_link(parent, DRIVER_NAME); @@ -463,6 +468,10 @@ static int turris_mox_rwtm_probe(struct platform_device *pdev) return ret; } + ret = devm_add_action_or_reset(dev, rwtm_devm_mbox_release, rwtm->mbox); + if (ret) + return ret; + init_completion(&rwtm->cmd_done); ret = mox_get_board_info(rwtm); @@ -473,7 +482,7 @@ static int turris_mox_rwtm_probe(struct platform_device *pdev) if (ret < 0) { dev_notice(dev, "Firmware does not support the GET_RANDOM command\n"); - goto free_channel; + return ret; } rwtm->hwrng.name = DRIVER_NAME "_hwrng"; @@ -483,7 +492,7 @@ static int turris_mox_rwtm_probe(struct platform_device *pdev) ret = devm_hwrng_register(dev, &rwtm->hwrng); if (ret < 0) { dev_err(dev, "Cannot register HWRNG: %i\n", ret); - goto free_channel; + return ret; } rwtm_register_debugfs(rwtm); @@ -500,17 +509,6 @@ static int turris_mox_rwtm_probe(struct platform_device *pdev) firmware_kobj); return 0; - -free_channel: - mbox_free_channel(rwtm->mbox); - return ret; -} - -static void turris_mox_rwtm_remove(struct platform_device *pdev) -{ - struct mox_rwtm *rwtm = platform_get_drvdata(pdev); - - mbox_free_channel(rwtm->mbox); } static const struct of_device_id turris_mox_rwtm_match[] = { @@ -523,7 +521,6 @@ MODULE_DEVICE_TABLE(of, turris_mox_rwtm_match); static struct platform_driver turris_mox_rwtm_driver = { .probe = turris_mox_rwtm_probe, - .remove_new = turris_mox_rwtm_remove, .driver = { .name = DRIVER_NAME, .of_match_table = turris_mox_rwtm_match,