Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Qing Wang <wangqing@vivo.com>
To:     Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Jiri Slaby <jirislaby@kernel.org>,
        linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     Wang Qing <wangqing@vivo.com>
Subject: [PATCH] tty: serial: 8250: add missing pci_dev_put() before return
Date:   Mon, 14 Feb 2022 18:00:53 -0800
Message-Id: <1644890454-65258-1-git-send-email-wangqing@vivo.com>
Content-Type: text/plain
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?QPLO2zzswIMMptk5porJv58Jh9HJy2pZU8Q0fm6//iLrX7NJfokE9nKvbF2r?=
 =?us-ascii?Q?/VLBO0nJ3cEVW54AsKP43GUG0Sgsqp3FRfB4fY/p00c2f6kVxCfMwAVM591L?=
 =?us-ascii?Q?l5mS7GMHvX2UCPsYFefLWpExdKuPXCsxmFh3ioRI//+Ds1FwuzH3CqQ/qlio?=
 =?us-ascii?Q?Omaxs5wYQ5xWwbKib9yvwzKGuXTw1ts9BlNbEasIkVIsFKFZRAYaU4Ns9cZX?=
 =?us-ascii?Q?iNKTlZCSHteaRLirI5CAZzS4rrvUkHqYyrBdoUoNez/GkMF/i6wI9B7nAKGF?=
 =?us-ascii?Q?ob+rBOjbkr2Fd85RtH925gJNLV9mpWVFvZ0NdEiGBuGiW5xTRy+NAyJikmCu?=
 =?us-ascii?Q?VV2QDTi5NF/OYzJl40YxTeEHvFV5W9MbBIK4+R8mibDzCpJXgXskqjl+E/jG?=
 =?us-ascii?Q?xNEfd+eNnvCqBxFX9J6QwjqmSis8BJwcKSE7v0tgMNNKYdMgIxwloLmTCte0?=
 =?us-ascii?Q?dcPPVtockOZAZ1WhNBQwh6LV5owPovt7CZdWu4YsVElf0YQHhplqgttWrAre?=
 =?us-ascii?Q?4qbJo0whmuC+vQdqCgB6WIWCthCqOJEAhSP93MP0RDK+Es0F/3EeKVl98abT?=
 =?us-ascii?Q?zSghOGgPn0RroGjuhHUBkK3Lc1M/VrL6oPqG617sNBp76xbFC7G2TOEnae9W?=
 =?us-ascii?Q?4/QU8662+E0Qkj//+VwZAd5q6CL+lPENvxwNZ/htLjJzBCT95Z4wzX41lM1V?=
 =?us-ascii?Q?jhLjzVpi0+api9stuu4LQwkYk48tFrppbpFBT8v5Uwy/pZaLHXK6cYEZldWW?=
 =?us-ascii?Q?RjWCJbQB9pFu+8yDV10anffgNTIm/8dWfjnSQ1fl8Nz00F6oMpTLD9eR3Zao?=
 =?us-ascii?Q?d/W0bq9hopYY3/pxmDvrUgelyG02lBkryudiovbw2eLL0gfIY4K51WFMQybF?=
 =?us-ascii?Q?74U/Y/t1aKMYcmQMUacrE1YF3tieaFCvd0bNd6Iy1jS17376Sz/6zXnSEZgm?=
 =?us-ascii?Q?s+IbdAyPbk4dVJxlkG/QkXaS1mFRBDJF/nRP89YnKic9maht1EE3GpZQBmWd?=
 =?us-ascii?Q?jDohF8AE0j58T8Ufb86FL2THbMV7cQemsbc+RwVTzXvzpQaquFYzdCj4IOle?=
 =?us-ascii?Q?sxgpC62lM1atsrt58s2UyX0ZbWHRazHled2CRyy5JZu+uxVxZHwv5kEYkcDm?=
 =?us-ascii?Q?ZJDjtp6prX2t0uWkQQtjxfCGP5uxngQuE69V4/tL0skii1bgdO8sG7u3bHGE?=
 =?us-ascii?Q?5GhnrSqvp2I9bys58e7wyFaFRQbHl2drvQIv6rdmuVeKA1nkslzs9D1MpBBP?=
 =?us-ascii?Q?p6xLJa1M2lAh2lLSfatOPtgEKo2QUsQ98BBzvKn5Tide1eTyZJCHELKF745q?=
 =?us-ascii?Q?6cXcRZKAkx5ZHapYn8UmW+28ek8NkgR0IP2N/h0boNIPHMy+5sC8NMGcleq6?=
 =?us-ascii?Q?NLOj48vXy9OQVNwytaW5Apd0CSYUo4a1j/FWFqa6w/uMR4v93n9yQan/tCLt?=
 =?us-ascii?Q?6gG2idYeW5CU3QmzRIpfOJXwqiv/AYJe+5aUWqSO5/lP9XJEfvujGnYc9TyW?=
 =?us-ascii?Q?7I/uegxlqzYqdv0M9yyIVni7RsY/VTdnF7WZkTK9dJTepRhxLpxpPvJ5Wrw6?=
 =?us-ascii?Q?bpZ2y83AcJT7wVbf3ht3zItjdGzPNM+dm+AM6kDhc7xbHtE8diymNa4m2cPe?=
 =?us-ascii?Q?7UnrO5BQ+39RsG70QlL8Lwc=3D?=
X-OriginatorOrg: vivo.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 876a1666-91c1-4b0d-b10f-08d9f02706df
X-MS-Exchange-CrossTenant-AuthSource: SL2PR06MB3082.apcprd06.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Feb 2022 02:01:06.1224
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 923e42dc-48d5-4cbe-b582-1a797a6412ed
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: rC5VmoNXshwD6w+l9YGnwIF6o8YpGCRdz1D7IYfYviyRG73E8XVM9KC2K2n1rzXNm+kWPisZwRioCyboRJ5eOw==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: TYZPR06MB4510
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED,
        DKIM_VALID,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS,
        T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

From: Wang Qing <wangqing@vivo.com>

pci_get_slot() increases its reference count, the caller must
decrement the reference count by calling pci_dev_put()

Signed-off-by: Wang Qing <wangqing@vivo.com>
---
 drivers/tty/serial/8250/8250_lpss.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_lpss.c b/drivers/tty/serial/8250/8250_lpss.c
index d3bafec..57e462f
--- a/drivers/tty/serial/8250/8250_lpss.c
+++ b/drivers/tty/serial/8250/8250_lpss.c
@@ -149,6 +149,8 @@ static int byt_serial_setup(struct lpss8250 *lpss, struct uart_port *port)
 	/* Disable TX counter interrupts */
 	writel(BYT_TX_OVF_INT_MASK, port->membase + BYT_TX_OVF_INT);
 
+	pci_dev_put(dma_dev);
+
 	return 0;
 }
 
-- 
2.7.4