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 AF0C527B333; Mon, 18 Aug 2025 13:34:36 +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=1755524076; cv=none; b=b2RYx2axKtdgyTFuWqKbV6FTKTRlfrTT2i8rlDMzXIdz3GQyedlBThTKpM3Hom6zEFQk0F+/S1py//P2sQx7QOBpaFe6dfNbvzqWdG/9knG8+QkKwh9SgZYqZUutwdMSIBlZjsP88plH25kVo4KcNLDsyDEZ+m7wNaujW5c+LBc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755524076; c=relaxed/simple; bh=uggxG3vF7oNftXFMMYfAZUP2uyVDB2ehPy1kFnc8vZg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=H//WDZ8GeZlNp6wU336jPQf+T2igZlh4xmkZyzXK2tSuKVlUyGuEV1ihYCshvWy6UuPmzpddqdgcggGp/QIXcH2ud03U36juYKs0eUB3T0CsA9gLil+lW+3Eb/yR8hUpflNFG8e/+MTyBHGJj5s143jYTNcoeZ/amGNxODZfiLc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=2r5d1aTI; 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="2r5d1aTI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BED77C4CEEB; Mon, 18 Aug 2025 13:34:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755524076; bh=uggxG3vF7oNftXFMMYfAZUP2uyVDB2ehPy1kFnc8vZg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2r5d1aTIUNilyce4FYXpCSRQVD+qhsVKoujqZdlEs8WZOQUA+tdKAZHXwioXbnKG6 f/OQGp3tJAs5++HhN7x+5dHt7pqiHahlEwvgUB21FVyE7AxptqBWlh9K3nt0/xKm66 l973oZP9XRFwETCpzNejBPsALkLqmWp+uQLrlIaQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Harry Wentland , Mario Limonciello , Ivan Lipski , Daniel Wheeler , Alex Deucher , Sasha Levin Subject: [PATCH 6.15 328/515] drm/amd/display: Only finalize atomic_obj if it was initialized Date: Mon, 18 Aug 2025 14:45:14 +0200 Message-ID: <20250818124511.060773383@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250818124458.334548733@linuxfoundation.org> References: <20250818124458.334548733@linuxfoundation.org> User-Agent: quilt/0.68 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-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mario Limonciello [ Upstream commit b174084b3fe15ad1acc69530e673c1535d2e4f85 ] [Why] If amdgpu_dm failed to initalize before amdgpu_dm_initialize_drm_device() completed then freeing atomic_obj will lead to list corruption. [How] Check if atomic_obj state is initialized before trying to free. Reviewed-by: Harry Wentland Signed-off-by: Mario Limonciello Signed-off-by: Ivan Lipski Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 9c01496ba590..75e7af5c5a3e 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -5309,7 +5309,8 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev) static void amdgpu_dm_destroy_drm_device(struct amdgpu_display_manager *dm) { - drm_atomic_private_obj_fini(&dm->atomic_obj); + if (dm->atomic_obj.state) + drm_atomic_private_obj_fini(&dm->atomic_obj); } /****************************************************************************** -- 2.39.5