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 145ED1272D1; Tue, 23 Jan 2024 00:11:23 +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=1705968683; cv=none; b=jrUZ6taZOpH39Z+2NUUiu97g00sGVtKnBHTYB6D2UasC2rn1R3Sjsl5CaNJ5r5Fp8dPMWw82NWYTHiSHYP1OlzrpUzkgu/xXmEjv4QF9sPr5m4eolBbByi3pyvggm7qsyKjwgQ3eRnqCShNBjkGSnchh9x0T6QELdXEZ2ZC8PrE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705968683; c=relaxed/simple; bh=NHZ140e9fFJzlifaVYENcOqUJn3GYHo6GjfEKpm/Apg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=PsVDgCUkwlNTzZZGkJaGm2q/HgjGZtpTgFTHHqbeGgJPjzOhP4knuxJEe5SSgCpkHzB/YeRONchpL+fupGgv4Wn3JUDpZbaQ2tSVJpZ3ZSjHb0JAUa2lydZWm/PJ83QOWCDmPYMO3P4jaXf0COoihchukkbN3rd8UArm2262Was= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=oeBRzlLf; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="oeBRzlLf" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 88E00C43390; Tue, 23 Jan 2024 00:11:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1705968682; bh=NHZ140e9fFJzlifaVYENcOqUJn3GYHo6GjfEKpm/Apg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oeBRzlLf2b+9tKaWXhoJitFng5pXhoNpuDJKjoKMIZKliqEc8Sg/jzO8IkApk1+ED vZxFhw33CLAMZd1DtrIrcklN3Yf2KYcFCm16CT8qmoOLDRhdSd4VZLSPCNJLyxn70b raLkaRqDZgvtL91K0GkF+x8wMrind7t2ZPcf18hc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Christian=20K=C3=B6nig?= , Alex Deucher , Sasha Levin Subject: [PATCH 4.19 102/148] drm/amdgpu/debugfs: fix error code when smc register accessors are NULL Date: Mon, 22 Jan 2024 15:57:38 -0800 Message-ID: <20240122235716.533674176@linuxfoundation.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240122235712.442097787@linuxfoundation.org> References: <20240122235712.442097787@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 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher [ Upstream commit afe58346d5d3887b3e49ff623d2f2e471f232a8d ] Should be -EOPNOTSUPP. Fixes: 5104fdf50d32 ("drm/amdgpu: Fix a null pointer access when the smc_rreg pointer is NULL") Reviewed-by: Christian König Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c index 41a9cc9e0f9d..98bd8a23e5b0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c @@ -392,7 +392,7 @@ static ssize_t amdgpu_debugfs_regs_smc_read(struct file *f, char __user *buf, int r; if (!adev->smc_rreg) - return -EPERM; + return -EOPNOTSUPP; if (size & 0x3 || *pos & 0x3) return -EINVAL; @@ -434,7 +434,7 @@ static ssize_t amdgpu_debugfs_regs_smc_write(struct file *f, const char __user * int r; if (!adev->smc_wreg) - return -EPERM; + return -EOPNOTSUPP; if (size & 0x3 || *pos & 0x3) return -EINVAL; -- 2.43.0