From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1E215C49EA6 for ; Thu, 24 Jun 2021 11:11:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 08E61613CE for ; Thu, 24 Jun 2021 11:11:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232409AbhFXLOA (ORCPT ); Thu, 24 Jun 2021 07:14:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:57502 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232370AbhFXLN7 (ORCPT ); Thu, 24 Jun 2021 07:13:59 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id F0FA5613C5; Thu, 24 Jun 2021 11:11:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624533100; bh=wlpnGzEf9wfERug0IBvtFXj4DlJaCEfDg1sXXiXDqKI=; h=Date:From:To:cc:Subject:In-Reply-To:References:From; b=usTgsiBRszfcGmqCm2fFYG2GmJzsTUIwLIg42RYwA8AaUCwpSWeHuWRNbMOE6iluA NEtY8lPCsCr3FfXHaRhIYNipYpaHbfzzU9BLNfzW/DkhELC/CQCErBvg+17p2N1SIJ PnQZ5EQONww/BUKf8nu47LYZGTN3K0C5m+ipEF0bgzdbTitn+tubwc6pAUS52ptAAv CD9yAaiSpa+mW4Qrabr+llj3oKXenkR4G9lRzc3Kt3D7otNMl+x8SPyKFcipV+Epz7 nuGOHcRcQ+2VImBaEzcurk0sSUz6+82jGwevh1flwQi7GhTWOd33DP03PQqSxjklTT Yur0m1CO+XORg== Date: Thu, 24 Jun 2021 13:11:36 +0200 (CEST) From: Jiri Kosina To: Alex Deucher , =?ISO-8859-15?Q?Christian_K=F6nig?= , David Airlie cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Vojtech Pavlik Subject: [PATCH v2] drm/amdgpu: Avoid printing of stack contents on firmware load error In-Reply-To: Message-ID: References: User-Agent: Alpine 2.21 (LSU 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jiri Kosina In case when psp_init_asd_microcode() fails to load ASD microcode file, psp_v12_0_init_microcode() tries to print the firmware filename that failed to load before bailing out. This is wrong because: - the firmware filename it would want it print is an incorrect one as psp_init_asd_microcode() and psp_v12_0_init_microcode() are loading different filenames - it tries to print fw_name, but that's not yet been initialized by that time, so it prints random stack contents, e.g. amdgpu 0000:04:00.0: Direct firmware load for amdgpu/renoir_asd.bin failed with error -2 amdgpu 0000:04:00.0: amdgpu: fail to initialize asd microcode amdgpu 0000:04:00.0: amdgpu: psp v12.0: Failed to load firmware "\xfeTO\x8e\xff\xff" Fix that by bailing out immediately, instead of priting the bogus error message. Reported-by: Vojtech Pavlik Signed-off-by: Jiri Kosina --- v1 -> v2: remove now-unused label drivers/gpu/drm/amd/amdgpu/psp_v12_0.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v12_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v12_0.c index c4828bd3264b..b0ee77ee80b9 100644 --- a/drivers/gpu/drm/amd/amdgpu/psp_v12_0.c +++ b/drivers/gpu/drm/amd/amdgpu/psp_v12_0.c @@ -67,7 +67,7 @@ static int psp_v12_0_init_microcode(struct psp_context *psp) err = psp_init_asd_microcode(psp, chip_name); if (err) - goto out; + return err; snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ta.bin", chip_name); err = request_firmware(&adev->psp.ta_fw, fw_name, adev->dev); @@ -80,7 +80,7 @@ static int psp_v12_0_init_microcode(struct psp_context *psp) } else { err = amdgpu_ucode_validate(adev->psp.ta_fw); if (err) - goto out2; + goto out; ta_hdr = (const struct ta_firmware_header_v1_0 *) adev->psp.ta_fw->data; @@ -105,10 +105,9 @@ static int psp_v12_0_init_microcode(struct psp_context *psp) return 0; -out2: +out: release_firmware(adev->psp.ta_fw); adev->psp.ta_fw = NULL; -out: if (err) { dev_err(adev->dev, "psp v12.0: Failed to load firmware \"%s\"\n", -- 2.12.3