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 7CAEA1D523 for ; Wed, 4 Oct 2023 18:03:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F124BC433C9; Wed, 4 Oct 2023 18:03:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1696442621; bh=N42a6ZFoheI/zz0zJOhQ4O5lnxY6OVT2vfWDCUd3cLw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HDX/D3g6f7BKpx2qdz0LPl1QvVsRJmqgBlVU02KvpO7VVCqVf4Llk9cBdLrLZ7Q1c 1oaJupJaCI+TFEK4Udk3wVbdmDynScKUrrGDxQCypyewi/2k8S0OruoE9rs8FgdfKF B74YV1JbhwkfzqSkyvX6Osjufi8HVxWeHttipXDM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Andy Shevchenko , Prashant Malani , Mika Westerberg , Stephen Boyd , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , Hans de Goede , Sasha Levin Subject: [PATCH 5.15 050/183] platform/x86: intel_scu_ipc: Dont override scu in intel_scu_ipc_dev_simple_command() Date: Wed, 4 Oct 2023 19:54:41 +0200 Message-ID: <20231004175206.047992362@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231004175203.943277832@linuxfoundation.org> References: <20231004175203.943277832@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-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stephen Boyd [ Upstream commit efce78584e583226e9a1f6cb2fb555d6ff47c3e7 ] Andy discovered this bug during patch review. The 'scu' argument to this function shouldn't be overridden by the function itself. It doesn't make any sense. Looking at the commit history, we see that commit f57fa18583f5 ("platform/x86: intel_scu_ipc: Introduce new SCU IPC API") removed the setting of the scu to ipcdev in other functions, but not this one. That was an oversight. Remove this line so that we stop overriding the scu instance that is used by this function. Reported-by: Andy Shevchenko Closes: https://lore.kernel.org/r/ZPjdZ3xNmBEBvNiS@smile.fi.intel.com Cc: Prashant Malani Reviewed-by: Andy Shevchenko Reviewed-by: Mika Westerberg Fixes: f57fa18583f5 ("platform/x86: intel_scu_ipc: Introduce new SCU IPC API") Signed-off-by: Stephen Boyd Link: https://lore.kernel.org/r/20230913212723.3055315-4-swboyd@chromium.org Reviewed-by: Ilpo Järvinen Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede Signed-off-by: Sasha Levin --- drivers/platform/x86/intel_scu_ipc.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c index be97cfae4b0f3..dfe010f1ee084 100644 --- a/drivers/platform/x86/intel_scu_ipc.c +++ b/drivers/platform/x86/intel_scu_ipc.c @@ -444,7 +444,6 @@ int intel_scu_ipc_dev_simple_command(struct intel_scu_ipc_dev *scu, int cmd, mutex_unlock(&ipclock); return -ENODEV; } - scu = ipcdev; cmdval = sub << 12 | cmd; ipc_command(scu, cmdval); err = intel_scu_ipc_check_status(scu); -- 2.40.1