From patchwork Mon Nov 11 17:48:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam via B4 Relay X-Patchwork-Id: 842631 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 877A61A2567; Mon, 11 Nov 2024 17:48:38 +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=1731347318; cv=none; b=BSpZvyhmGi0RQCZDQw+HI2TG0Yd2T6Shw6graubM+gDQSYO8foL2pGIi8UfQ12E5hiXFQakTdaB832EGonNkfd17pWmLQG6Ym+R7vcqzvpxk+YuP2nGV+ZYj5ESOH9fDPBkkiS9mC5V3lXy9qOyjo7c8ns1WfIxbshPg9hkOy5A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731347318; c=relaxed/simple; bh=fuQ00GAi9j38VTJ+Mk4loS5qcVMhkxws4U8+NkGhafM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ls76DaIBfIJGCLVPBddncNux+7yCykF/6C30CF1SmtZE3IOI8g+u1ZkGdRs1rygkzGyJ4RSbOkdvTU8DFaarGwVyJHG3mQPdJjyfHUQ+myl3xbrhUJYxnB/b8YNCHfOPG9aV3QT+GC42jsvCUi8DzjEkj6DVOEwwDo4PpyWIS4E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=IJKSMR23; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="IJKSMR23" Received: by smtp.kernel.org (Postfix) with ESMTPS id 3BD31C4CED7; Mon, 11 Nov 2024 17:48:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731347318; bh=fuQ00GAi9j38VTJ+Mk4loS5qcVMhkxws4U8+NkGhafM=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=IJKSMR23utkGbtJsEmrf3ChMvfo7qg1qtUzv5kPI1oEcHbSDuTrcSy+QB0oN3imyd 6V2ZtWKHMYKU52mDsFWkLGTO2sHibSXgRRaEDO9UGrKkb7oK9dc2KIvvX8DO3F5jxC NFUGAluwBDdaE7X1nR1f7tjBBlGuPjUOF1nhPl7mFrQmGQEg0yQ/t7rOMQbt91iQNb ls2MeMG3f0vLOPoVlXcG/66lDtsAJK/2GRLPF5fCO/lXeelnGK3OqIu7Yim9+BUz7Q KQt9E1jg7uP/1EzUQmZrsmx9ml/ahUduvJs9IO+Celr7MBtm/KncaYRp0TPsB8d5gB KamMRcYIOokEQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C932D3ABDA; Mon, 11 Nov 2024 17:48:38 +0000 (UTC) From: Manivannan Sadhasivam via B4 Relay Date: Mon, 11 Nov 2024 23:18:31 +0530 Subject: [PATCH 2/5] scsi: ufs: qcom: Only free platform MSIs when ESI is enabled Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241111-ufs_bug_fix-v1-2-45ad8b62f02e@linaro.org> References: <20241111-ufs_bug_fix-v1-0-45ad8b62f02e@linaro.org> In-Reply-To: <20241111-ufs_bug_fix-v1-0-45ad8b62f02e@linaro.org> To: Alim Akhtar , Avri Altman , Bart Van Assche , "James E.J. Bottomley" , "Martin K. Petersen" , Mike Bi , Bean Huo , =?utf-8?q?Thom?= =?utf-8?q?as_Wei=C3=9Fschuh?= , Luca Porzio , Asutosh Das , Can Guo , Pedro Sousa , Krzysztof Kozlowski , Peter Wang , Stanley Jhu , Yoshihiro Shimoda , Orson Zhai , Baolin Wang , Chunyan Zhang , Matthias Brugger , AngeloGioacchino Del Regno , Santosh Y , Namjae Jeon Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-renesas-soc@vger.kernel.org, Manivannan Sadhasivam , stable@vger.kernel.org X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1761; i=manivannan.sadhasivam@linaro.org; h=from:subject:message-id; bh=EbvyeMTjnnXzYsrb6hiWc8REw/zP3a1kZd0DUfTawxw=; b=owEBbQGS/pANAwAKAVWfEeb+kc71AcsmYgBnMkNzWH2qACCnRiu+0ZVgDwFBCU0StL7JZgEET u7l9pbT9CSJATMEAAEKAB0WIQRnpUMqgUjL2KRYJ5dVnxHm/pHO9QUCZzJDcwAKCRBVnxHm/pHO 9S7JB/90TEoS/+sDZO0X0MjP4rilFN/QiPGEBYP/qeEnMEreebOIEx2KZBTyGtPoSlH0U11whee h/cQ4BaWi8qJs7uxTqoKKez1yUb2SynV7Xdd2KNrBAl1cdbbKsCE0Se33qic7aRVq7Nooh5mcAQ hGW6jj2UyKiNeTsdwsaYTIMx2Jde6PpwKv90WjQXQxunrwVt/yv3+o0/CJObO4HXIBZy9n4f0Cv OwaEBqBG3UdbwwewFV22V93QQ2gn5pS+WQnQiS3G6aM78r2N50xoSWOLQEN2Q4iIYH5bpMNR4TE f1m2EtfA79wWzq2cuV/irM5AZmWRP3LqXGP9NZApfm7jXMzT X-Developer-Key: i=manivannan.sadhasivam@linaro.org; a=openpgp; fpr=C668AEC3C3188E4C611465E7488550E901166008 X-Endpoint-Received: by B4 Relay for manivannan.sadhasivam@linaro.org/default with auth_id=185 X-Original-From: Manivannan Sadhasivam Reply-To: manivannan.sadhasivam@linaro.org From: Manivannan Sadhasivam Otherwise, it will result in a NULL pointer dereference as below: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 Call trace: mutex_lock+0xc/0x54 platform_device_msi_free_irqs_all+0x14/0x20 ufs_qcom_remove+0x34/0x48 [ufs_qcom] platform_remove+0x28/0x44 device_remove+0x4c/0x80 device_release_driver_internal+0xd8/0x178 driver_detach+0x50/0x9c bus_remove_driver+0x6c/0xbc driver_unregister+0x30/0x60 platform_driver_unregister+0x14/0x20 ufs_qcom_pltform_exit+0x18/0xb94 [ufs_qcom] __arm64_sys_delete_module+0x180/0x260 invoke_syscall+0x44/0x100 el0_svc_common.constprop.0+0xc0/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x34/0xdc el0t_64_sync_handler+0xc0/0xc4 el0t_64_sync+0x190/0x194 Cc: stable@vger.kernel.org # 6.3 Fixes: 519b6274a777 ("scsi: ufs: qcom: Add MCQ ESI config vendor specific ops") Signed-off-by: Manivannan Sadhasivam Reviewed-by: Bean Huo --- drivers/ufs/host/ufs-qcom.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index ecdfff2456e3..1bcc538ef8af 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -1843,10 +1843,12 @@ static int ufs_qcom_probe(struct platform_device *pdev) static void ufs_qcom_remove(struct platform_device *pdev) { struct ufs_hba *hba = platform_get_drvdata(pdev); + struct ufs_qcom_host *host = ufshcd_get_variant(hba); pm_runtime_get_sync(&(pdev)->dev); ufshcd_remove(hba); - platform_device_msi_free_irqs_all(hba->dev); + if (host->esi_enabled) + platform_device_msi_free_irqs_all(hba->dev); } static const struct of_device_id ufs_qcom_of_match[] __maybe_unused = {