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=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 982ECC4646B for ; Wed, 26 Jun 2019 03:49:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7250420659 for ; Wed, 26 Jun 2019 03:49:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561520944; bh=jR+4A1dwMOdo0F/s8t4BNQ1CilH+GXDKBG8569YINPI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=apwg0+5ylWusylVtOzY2k8NvMrpF9veyG1FQQn/Dlh48/uJg4wW38yfmAogfVOXPo wirKrSlzoXoq+RgPihhhIQgGkjm9rfjlnHyV59QVZVfonS7KhnnrAL63pF9vG4lNBn tNDc71tW5w7LP6GES7kvNjviUSI9D2R3HqfQ9YnU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727485AbfFZDoD (ORCPT ); Tue, 25 Jun 2019 23:44:03 -0400 Received: from mail.kernel.org ([198.145.29.99]:55306 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726860AbfFZDn7 (ORCPT ); Tue, 25 Jun 2019 23:43:59 -0400 Received: from sasha-vm.mshome.net (mobile-107-77-172-98.mobile.att.net [107.77.172.98]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8231020883; Wed, 26 Jun 2019 03:43:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561520639; bh=jR+4A1dwMOdo0F/s8t4BNQ1CilH+GXDKBG8569YINPI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bPqq6y8Z9KMBkyrPHLdY/0kQpYXXSxfN4b32NlZQ/KxrwJO64nH1T6k5/XLmMNx1u fq9mZx5ngIDrVrBIh3CZyUYvrxKNB51eOWGiiwXq/Iav441hHsR2fQcj60DU8dH5no Txns8/7kun7nBWelcgdHzyZOQol1wycKBDl9eIYY= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Hsin-Yi Wang , CK Hu , Sasha Levin , dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 4.19 11/34] drm/mediatek: clear num_pipes when unbind driver Date: Tue, 25 Jun 2019 23:43:12 -0400 Message-Id: <20190626034335.23767-11-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190626034335.23767-1-sashal@kernel.org> References: <20190626034335.23767-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Hsin-Yi Wang [ Upstream commit a4cd1d2b016d5d043ab2c4b9c4ec50a5805f5396 ] num_pipes is used for mutex created in mtk_drm_crtc_create(). If we don't clear num_pipes count, when rebinding driver, the count will be accumulated. From mtk_disp_mutex_get(), there can only be at most 10 mutex id. Clear this number so it starts from 0 in every rebind. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Hsin-Yi Wang Signed-off-by: CK Hu Signed-off-by: Sasha Levin --- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index 3df8a9dbccfe..fd83046d8376 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -393,6 +393,7 @@ static void mtk_drm_unbind(struct device *dev) drm_dev_unregister(private->drm); mtk_drm_kms_deinit(private->drm); drm_dev_put(private->drm); + private->num_pipes = 0; private->drm = NULL; } -- 2.20.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sasha Levin Subject: [PATCH AUTOSEL 4.19 11/34] drm/mediatek: clear num_pipes when unbind driver Date: Tue, 25 Jun 2019 23:43:12 -0400 Message-ID: <20190626034335.23767-11-sashal@kernel.org> References: <20190626034335.23767-1-sashal@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id A419D6E273 for ; Wed, 26 Jun 2019 03:43:59 +0000 (UTC) In-Reply-To: <20190626034335.23767-1-sashal@kernel.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Sasha Levin , dri-devel@lists.freedesktop.org, Hsin-Yi Wang List-Id: dri-devel@lists.freedesktop.org RnJvbTogSHNpbi1ZaSBXYW5nIDxoc2lueWlAY2hyb21pdW0ub3JnPgoKWyBVcHN0cmVhbSBjb21t aXQgYTRjZDFkMmIwMTZkNWQwNDNhYjJjNGI5YzRlYzUwYTU4MDVmNTM5NiBdCgpudW1fcGlwZXMg aXMgdXNlZCBmb3IgbXV0ZXggY3JlYXRlZCBpbiBtdGtfZHJtX2NydGNfY3JlYXRlKCkuIElmIHdl CmRvbid0IGNsZWFyIG51bV9waXBlcyBjb3VudCwgd2hlbiByZWJpbmRpbmcgZHJpdmVyLCB0aGUg Y291bnQgd2lsbApiZSBhY2N1bXVsYXRlZC4gRnJvbSBtdGtfZGlzcF9tdXRleF9nZXQoKSwgdGhl cmUgY2FuIG9ubHkgYmUgYXQgbW9zdAoxMCBtdXRleCBpZC4gQ2xlYXIgdGhpcyBudW1iZXIgc28g aXQgc3RhcnRzIGZyb20gMCBpbiBldmVyeSByZWJpbmQuCgpGaXhlczogMTE5ZjUxNzM2MjhhICgi ZHJtL21lZGlhdGVrOiBBZGQgRFJNIERyaXZlciBmb3IgTWVkaWF0ZWsgU29DIE1UODE3My4iKQpT aWduZWQtb2ZmLWJ5OiBIc2luLVlpIFdhbmcgPGhzaW55aUBjaHJvbWl1bS5vcmc+ClNpZ25lZC1v ZmYtYnk6IENLIEh1IDxjay5odUBtZWRpYXRlay5jb20+ClNpZ25lZC1vZmYtYnk6IFNhc2hhIExl dmluIDxzYXNoYWxAa2VybmVsLm9yZz4KLS0tCiBkcml2ZXJzL2dwdS9kcm0vbWVkaWF0ZWsvbXRr X2RybV9kcnYuYyB8IDEgKwogMSBmaWxlIGNoYW5nZWQsIDEgaW5zZXJ0aW9uKCspCgpkaWZmIC0t Z2l0IGEvZHJpdmVycy9ncHUvZHJtL21lZGlhdGVrL210a19kcm1fZHJ2LmMgYi9kcml2ZXJzL2dw dS9kcm0vbWVkaWF0ZWsvbXRrX2RybV9kcnYuYwppbmRleCAzZGY4YTlkYmNjZmUuLmZkODMwNDZk ODM3NiAxMDA2NDQKLS0tIGEvZHJpdmVycy9ncHUvZHJtL21lZGlhdGVrL210a19kcm1fZHJ2LmMK KysrIGIvZHJpdmVycy9ncHUvZHJtL21lZGlhdGVrL210a19kcm1fZHJ2LmMKQEAgLTM5Myw2ICsz OTMsNyBAQCBzdGF0aWMgdm9pZCBtdGtfZHJtX3VuYmluZChzdHJ1Y3QgZGV2aWNlICpkZXYpCiAJ ZHJtX2Rldl91bnJlZ2lzdGVyKHByaXZhdGUtPmRybSk7CiAJbXRrX2RybV9rbXNfZGVpbml0KHBy aXZhdGUtPmRybSk7CiAJZHJtX2Rldl9wdXQocHJpdmF0ZS0+ZHJtKTsKKwlwcml2YXRlLT5udW1f cGlwZXMgPSAwOwogCXByaXZhdGUtPmRybSA9IE5VTEw7CiB9CiAKLS0gCjIuMjAuMQoKX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxp bmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJl ZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVs