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 B6BDA2FC008; Tue, 26 Aug 2025 13:13:24 +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=1756214004; cv=none; b=mMC7NHz3efLYIik7PHVFuRB4zyYakHRsDWQjn8IWzBGi4aE3ZSo/1RNi9j1gJHn+J6RGVTgKZScSNh0XnnMu/tktjZCg4b6swwD7cG3a17utRgh9nSTyUjwvE0UiFuYgdGU6Jggp+k0Pu+sTnO2yXHMsNqwtfpzpS6fHNzRHck4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756214004; c=relaxed/simple; bh=iip5ejvZlMtelrI5HRzL5HRa/fKA96/jtN+tpP36Td4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tWvNSLxgeEwWhs+s4eKZ1jg9ODOjM9f2YIhyRsF9V6jRb1ap23C9ADBocQ/Y1rombY6ZZI8mRmWb6eyOE9vda2av5XehGnzsVthF236zvZcDcMRVudkUBmbvT8tqNDaPi0vbT/IWD/LOhk9V7J0NKPngezbTFFJK2oK0C6MnCKY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=OrNSSQ7s; 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="OrNSSQ7s" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 16BA2C4CEF4; Tue, 26 Aug 2025 13:13:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756214004; bh=iip5ejvZlMtelrI5HRzL5HRa/fKA96/jtN+tpP36Td4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OrNSSQ7swF6drlzxj3fDzbtbapFHS8DmH1xvmXbXLZ0ffGNwXbnuceT/eydWILQUo /88vTKgYWnPPU00c2KL8BocxG+cGVCFz4QnYSEFHXQ0rc2jJbCS7kX6kWkX4uARChU qFXwXIumd9zmD4MM10ONAgjVniPSbC3bEIIIVzjI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Baihan Li , Yongbang Shi , Dmitry Baryshkov , Sasha Levin Subject: [PATCH 6.6 562/587] drm/hisilicon/hibmc: fix the hibmc loaded failed bug Date: Tue, 26 Aug 2025 13:11:51 +0200 Message-ID: <20250826111007.322449002@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110952.942403671@linuxfoundation.org> References: <20250826110952.942403671@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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Baihan Li [ Upstream commit 93a08f856fcc5aaeeecad01f71bef3088588216a ] When hibmc loaded failed, the driver use hibmc_unload to free the resource, but the mutexes in mode.config are not init, which will access an NULL pointer. Just change goto statement to return, because hibnc_hw_init() doesn't need to free anything. Fixes: b3df5e65cc03 ("drm/hibmc: Drop drm_vblank_cleanup") Signed-off-by: Baihan Li Signed-off-by: Yongbang Shi Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20250813094238.3722345-5-shiyongbang@huawei.com Signed-off-by: Dmitry Baryshkov Signed-off-by: Sasha Levin --- drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c index 8a98fa276e8a..96f960bcfd82 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c @@ -258,13 +258,13 @@ static int hibmc_load(struct drm_device *dev) ret = hibmc_hw_init(priv); if (ret) - goto err; + return ret; ret = drmm_vram_helper_init(dev, pci_resource_start(pdev, 0), pci_resource_len(pdev, 0)); if (ret) { drm_err(dev, "Error initializing VRAM MM; %d\n", ret); - goto err; + return ret; } ret = hibmc_kms_init(priv); -- 2.50.1