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x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=microsoft.com header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S968606AbeCSU7g (ORCPT ); Mon, 19 Mar 2018 16:59:36 -0400 Received: from mail-cys01nam02on0122.outbound.protection.outlook.com ([104.47.37.122]:7795 "EHLO NAM02-CY1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S965512AbeCSQDE (ORCPT ); Mon, 19 Mar 2018 12:03:04 -0400 From: Sasha Levin To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" CC: Alexandre Belloni , Stephen Boyd , Sasha Levin Subject: [PATCH AUTOSEL for 4.9 171/281] clk: at91: fix clk-generated parenting Thread-Topic: [PATCH AUTOSEL for 4.9 171/281] clk: at91: fix clk-generated parenting Thread-Index: AQHTv5uCEVhloUOlfkWVBOdk05oWfw== Date: Mon, 19 Mar 2018 16:01:16 +0000 Message-ID: <20180319155742.13731-171-alexander.levin@microsoft.com> References: <20180319155742.13731-1-alexander.levin@microsoft.com> In-Reply-To: <20180319155742.13731-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;DM5PR2101MB0725;7:S3RrQP2MW/6PnzcuHhJUh+ww0zqImUdBnroBlfAZK7TNS+MYHjOwN+dINvNUEBcjVtaOlKNYuE2EaSDSdRCzxPuMy1iolwU1j8wIJWAlX9s8NFYDwqaK9iCV0K/ugYWtjrVQXrlOzE9VH6CQpqbl+UHVP/nlmoBWJgl4ctPMfRwJABrDGz9KzDp+pnhDMjYJ4Wap91J9mek4wggpUXRoO4V77o96NX22xu6yn91K5n9OrNdG+abatJFv3YqCtfVp;20:N1DxDg6PxmSjMfuiBDg3pL41kjmNtftifH3B7Nw7IB2KSPKeiME/zMPA8e1Qo9Y8aRxc6KVPfxNZAGubep5MG0TcGPIoDr0o2Vn99ALcJ+JDYUqPAxToOrjqwQvaW0gv3x1N6/cNdIXtzzvWRAukP6gBKNp21ZCRTVqjrx4md3s= x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: c7a1e02c-0899-48c3-2b59-08d58db2e1d3 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB0725; 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x-microsoft-antispam-message-info: w2crm9OxxUwNUQd9a4GLoaXeWXqPJSU3tMFTLa6ElaZ6bbCRPxgWVDX/KWbvkJGGYe2XiWsB+9aK+ytoOVtFX6u3kcrZJP3MdrrM+lQlYKr/gAhn2N+dFhTxu5CvKxjg6dJUuXJap3PAz6y9p2BeuGfCvam0ys6NARETXuNXZAwcS7YNraZEPUsiYHTqWlP9xLcenUMAWm1zTvAqKKdK2LZgAI0w6w56g84D9Uvh6qT3rZ1Zs/pHkorc82B56GxDAiq7zsgqJmI3Y/1UD/zcDnURV7kk4B0u5kX+qfvGIZ41csLCl5edJu6WMiq4RWQl76WIXgAOXtF4AlPwbtPtgw== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: c7a1e02c-0899-48c3-2b59-08d58db2e1d3 X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Mar 2018 16:01:16.1523 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0725 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Alexandre Belloni [ Upstream commit 8e56133e5c7b7a7a97f6a92d92f664d5ecd30745 ] clk_generated_startup is called after clk_hw_register. So the first call to get_parent will not have the correct value (i.e. 0) and because this is cached, it may never be updated. Signed-off-by: Alexandre Belloni Fixes: df70aeef6083 ("clk: at91: add generated clock driver") Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin --- drivers/clk/at91/clk-generated.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/clk/at91/clk-generated.c b/drivers/clk/at91/clk-genera= ted.c index 4e1cd5aa69d8..70474bd97a10 100644 --- a/drivers/clk/at91/clk-generated.c +++ b/drivers/clk/at91/clk-generated.c @@ -260,13 +260,12 @@ at91_clk_register_generated(struct regmap *regmap, sp= inlock_t *lock, gck->lock =3D lock; gck->range =3D *range; =20 + clk_generated_startup(gck); hw =3D &gck->hw; ret =3D clk_hw_register(NULL, &gck->hw); if (ret) { kfree(gck); hw =3D ERR_PTR(ret); - } else - clk_generated_startup(gck); =20 return hw; } --=20 2.14.1