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Filename Latest commit message Latest commit date
Vladimir Zapolskiy 04301da4d8 pwm: lpc32xx: Remove handling of PWM channels
[ Upstream commit 4aae44f65827f0213a7361cf9c32cfe06114473f ]

Because LPC32xx PWM controllers have only a single output which is
registered as the only PWM device/channel per controller, it is known in
advance that pwm->hwpwm value is always 0. On basis of this fact
simplify the code by removing operations with pwm->hwpwm, there is no
controls which require channel number as input.

Even though I wasn't aware at the time when I forward ported that patch,
this fixes a null pointer dereference as lpc32xx->chip.pwms is NULL
before devm_pwmchip_add() is called.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: 3d2813fb17e5 ("pwm: lpc32xx: Don't modify HW state in .probe() after the PWM chip was registered")
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-23 10:59:58 +02:00
arch x86/virt: Drop unnecessary check on extended CPUID level in cpu_has_svm() 2023-09-23 10:59:57 +02:00
block
certs
crypto X.509: if signature is unsupported skip validation 2023-09-23 10:59:55 +02:00
Documentation Documentation/sysctl: document page_lock_unfairness 2023-08-30 16:27:27 +02:00
drivers pwm: lpc32xx: Remove handling of PWM channels 2023-09-23 10:59:58 +02:00
fs NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info 2023-09-23 10:59:57 +02:00
include net: handle ARPHRD_PPP in dev_is_mac_header_xmit() 2023-09-23 10:59:55 +02:00
init
ipc
kernel tracing: Fix race issue between cpu buffer write and swap 2023-09-23 10:59:52 +02:00
lib lib/test_meminit: allocate pages up to order MAX_ORDER 2023-09-23 10:59:57 +02:00
LICENSES
mm tmpfs: verify {g,u}id mount options correctly 2023-09-23 10:59:40 +02:00
net net/ipv6: SKB symmetric hash should incorporate transport ports 2023-09-23 10:59:56 +02:00
samples
scripts kconfig: fix possible buffer overflow 2023-09-23 10:59:57 +02:00
security smackfs: Prevent underflow in smk_set_cipso() 2023-09-23 10:59:46 +02:00
sound ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl 2023-09-23 10:59:54 +02:00
tools perf top: Don't pass an ERR_PTR() directly to perf_session__delete() 2023-09-23 10:59:57 +02:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.256 2023-09-02 09:19:19 +02:00
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.