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Dinghao Liu e4befc121d usb: musb: Fix runtime PM imbalance on error
When copy_from_user() returns an error code, there
is a runtime PM usage counter imbalance.

Fix this by moving copy_from_user() to the beginning
of this function.

Fixes: 7b6c1b4c0e ("usb: musb: fix runtime PM in debugfs")

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Cc: stable@vger.kernel.org
Signed-off-by: Bin Liu <b-liu@ti.com>
Link: https://lore.kernel.org/r/20200525025049.3400-7-b-liu@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-25 13:36:31 +02:00
arch USB: changes for v5.8 merge window 2020-05-25 13:28:20 +02:00
block
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Documentation USB: changes for v5.8 merge window 2020-05-25 13:28:20 +02:00
drivers usb: musb: Fix runtime PM imbalance on error 2020-05-25 13:36:31 +02:00
fs Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2020-05-17 12:23:37 -07:00
include USB: changes for v5.8 merge window 2020-05-25 13:28:20 +02:00
init A single fix for early boot crashes of kernels built with gcc10 and 2020-05-17 11:08:29 -07:00
ipc
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-15 13:10:06 -07:00
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-15 13:10:06 -07:00
LICENSES
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net NFS client bugfixes for Linux 5.7 2020-05-15 14:03:13 -07:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-15 13:10:06 -07:00
scripts
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sound sound fixes for 5.7-rc6 2020-05-15 10:06:49 -07:00
tools A new testcase for guest debugging (gdbstub) that exposed a bunch of 2020-05-16 13:39:22 -07:00
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MAINTAINERS Merge 5.7-rc6 into usb-next 2020-05-18 07:55:55 +02:00
Makefile Linux 5.7-rc6 2020-05-17 16:48:37 -07:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.