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Filename Latest commit message Latest commit date
Leonard Crestez 9112d1ef5a perf/imx_ddr: Fix cpu hotplug state cleanup
[ Upstream commit 9ee68b314e9aa63ed11b98beb8a68810b8234dcf ]

This driver allocates a dynamic cpu hotplug state but never releases it.
If reloaded in a loop it will quickly trigger a WARN message:

	"No more dynamic states available for CPU hotplug"

Fix by calling cpuhp_remove_multi_state on remove like several other
perf pmu drivers.

Also fix the cleanup logic on probe error paths: add the missing
cpuhp_remove_multi_state call and properly check the return value from
cpuhp_state_add_instant_nocalls.

Fixes: 9a66d36cc7 ("drivers/perf: imx_ddr: Add DDR performance counter support to perf")
Acked-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:36:49 +01:00
arch ARM: dts: rockchip: add reg property to brcmf sub node for rk3188-bqedison2qc 2020-02-24 08:36:46 +01:00
block block, bfq: do not plug I/O for bfq_queues with no proc refs 2020-02-24 08:36:31 +01:00
certs
crypto
Documentation fbdev: fix numbering of fbcon options 2020-02-24 08:36:42 +01:00
drivers perf/imx_ddr: Fix cpu hotplug state cleanup 2020-02-24 08:36:49 +01:00
fs udf: Fix free space reporting for metadata and virtual partitions 2020-02-24 08:36:44 +01:00
include raid6/test: fix a compilation warning 2020-02-24 08:36:47 +01:00
init
ipc
kernel padata: validate cpumask without removed CPU during offline 2020-02-24 08:36:34 +01:00
lib raid6/test: fix a compilation warning 2020-02-24 08:36:47 +01:00
LICENSES
mm
net bpf: Return -EBADRQC for invalid map type in __bpf_tx_xdp_map 2020-02-24 08:36:48 +01:00
samples samples/bpf: Set -fno-stack-protector when building BPF programs 2020-02-24 08:36:36 +01:00
scripts kconfig: fix broken dependency in randconfig-generated .config 2020-02-24 08:36:32 +01:00
security selinux: ensure we cleanup the internal AVC counters on error in avc_update() 2020-02-24 08:36:39 +01:00
sound ASoC: SOF: Intel: hda-dai: fix compilation warning in pcm_prepare 2020-02-24 08:36:48 +01:00
tools usbip: Fix unsafe unaligned pointer usage 2020-02-24 08:36:44 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.21 2020-02-19 19:53:10 +01:00
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.