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 A536063B8 for ; Mon, 20 Feb 2023 13:40:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2D221C4339B; Mon, 20 Feb 2023 13:40:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1676900419; bh=W48JW8SGQpmmpjj3KFiSG+ufrG0SIWY/T3msLhP+P3I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XEcVbv2N8LeFdTmMTBz7X3NjvK0pUVJHNNPkRihtPgafO3LdoSqxXArLTKdC8oKrZ iqEHDvNV2N7dAc+cwhX44oDeNC1aSWGJjcb9WGHxUiY6KFd3tGMGstbj1Ynj0DYuSz z2GDR3BzEsD5sfCChMxRoymJ6jIBQvWxAh7YGWPo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yuan Can , Jernej Skrabec , Sasha Levin Subject: [PATCH 4.19 02/89] bus: sunxi-rsb: Fix error handling in sunxi_rsb_init() Date: Mon, 20 Feb 2023 14:35:01 +0100 Message-Id: <20230220133553.162427263@linuxfoundation.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230220133553.066768704@linuxfoundation.org> References: <20230220133553.066768704@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Yuan Can [ Upstream commit f71eaf2708be7831428eacae7db25d8ec6b8b4c5 ] The sunxi_rsb_init() returns the platform_driver_register() directly without checking its return value, if platform_driver_register() failed, the sunxi_rsb_bus is not unregistered. Fix by unregister sunxi_rsb_bus when platform_driver_register() failed. Fixes: d787dcdb9c8f ("bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus") Signed-off-by: Yuan Can Reviewed-by: Jernej Skrabec Link: https://lore.kernel.org/r/20221123094200.12036-1-yuancan@huawei.com Signed-off-by: Jernej Skrabec Signed-off-by: Sasha Levin --- drivers/bus/sunxi-rsb.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/bus/sunxi-rsb.c b/drivers/bus/sunxi-rsb.c index d3fb350dc9ee..bf4db708f0bd 100644 --- a/drivers/bus/sunxi-rsb.c +++ b/drivers/bus/sunxi-rsb.c @@ -783,7 +783,13 @@ static int __init sunxi_rsb_init(void) return ret; } - return platform_driver_register(&sunxi_rsb_driver); + ret = platform_driver_register(&sunxi_rsb_driver); + if (ret) { + bus_unregister(&sunxi_rsb_bus); + return ret; + } + + return 0; } module_init(sunxi_rsb_init); -- 2.39.0