netdev - [PATCH v2 0/2] Fix usage counter leak by adding a general sync ops

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Message-ID: <20201109150416.1877878-1-zhangqilong3@huawei.com>
Date:   Mon, 9 Nov 2020 23:04:14 +0800
From:   Zhang Qilong <zhangqilong3@...wei.com>
To:     <rjw@...ysocki.net>, <fugang.duan@....com>, <davem@...emloft.net>,
        <kuba@...nel.org>
CC:     <linux-pm@...r.kernel.org>, <netdev@...r.kernel.org>
Subject: [PATCH v2 0/2] Fix usage counter leak by adding a general sync ops

In many case, we need to check return value of pm_runtime_get_sync,
but it brings a trouble to the usage counter processing. Many callers
forget to decrease the usage counter when it failed. It has been
discussed a lot[0][1]. So we add a function to deal with the usage
counter for better coding and view. Then, we replace pm_runtime_get_sync
with it in fec_main.c

Zhang Qilong (2):
  PM: runtime: Add a general runtime get sync operation to deal with
    usage counter
  net: fec: Fix reference count leak in fec series ops

 drivers/net/ethernet/freescale/fec_main.c | 12 ++++-----
 include/linux/pm_runtime.h                | 30 +++++++++++++++++++++++
 2 files changed, 35 insertions(+), 7 deletions(-)

-- 
2.25.4