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Filename Latest commit message Latest commit date
Hans de Goede d1415125b7 leds: trigger: Unregister sysfs attributes before calling deactivate()
[ Upstream commit c0dc9adf9474ecb7106e60e5472577375aedaed3 ]

Triggers which have trigger specific sysfs attributes typically store
related data in trigger-data allocated by the activate() callback and
freed by the deactivate() callback.

Calling device_remove_groups() after calling deactivate() leaves a window
where the sysfs attributes show/store functions could be called after
deactivation and then operate on the just freed trigger-data.

Move the device_remove_groups() call to before deactivate() to close
this race window.

This also makes the deactivation path properly do things in reverse order
of the activation path which calls the activate() callback before calling
device_add_groups().

Fixes: a7e7a31563 ("leds: triggers: add device attribute support")
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20240504162533.76780-1-hdegoede@redhat.com
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-08-19 05:33:31 +02:00
arch perf/x86/intel/pt: Fix pt_topa_entry_for_page() address calculation 2024-08-19 05:33:29 +02:00
block block: prevent division by zero in blk_rq_stat_sum() 2024-04-13 12:51:38 +02:00
certs
crypto crypto: ecrdsa - Fix module auto-load on add_key 2024-06-16 13:28:51 +02:00
Documentation ASoC: dt-bindings: rt5645: add cbj sleeve gpio property 2024-06-16 13:28:31 +02:00
drivers leds: trigger: Unregister sysfs attributes before calling deactivate() 2024-08-19 05:33:31 +02:00
fs hfsplus: fix to avoid false alarm of circular locking 2024-08-19 05:33:25 +02:00
include USB: move snd_usb_pipe_sanity_check into the USB core 2024-08-19 05:33:30 +02:00
init init: open /initrd.image with O_LARGEFILE 2024-04-13 12:51:36 +02:00
ipc
kernel perf: Prevent passing zero nr_pages to rb_alloc_aux() 2024-08-19 05:33:29 +02:00
lib mlxsw: spectrum_acl_erp: Fix object nesting warning 2024-08-19 05:33:28 +02:00
LICENSES
mm Revert "mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again" 2024-07-18 11:40:51 +02:00
net gss_krb5: Fix the error handling path for crypto_sync_skcipher_setkey 2024-08-19 05:33:30 +02:00
samples media: rename VFL_TYPE_GRABBER to _VIDEO 2024-03-26 18:22:22 -04:00
scripts kconfig: remove wrong expr_trans_bool() 2024-07-27 10:38:29 +02:00
security smack: Handle SMACK64TRANSMUTE in smack_inode_setsecurity() 2024-04-13 12:51:22 +02:00
sound USB: move snd_usb_pipe_sanity_check into the USB core 2024-08-19 05:33:30 +02:00
tools selftests: forwarding: devlink_lib: Wait for udev events after reloading 2024-08-19 05:33:30 +02:00
usr
virt KVM: async_pf: Cleanup kvm_setup_async_pf() 2024-05-02 16:18:32 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.281 2024-07-27 10:38:33 +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.