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1c5fe02ca8
For reboot stress tests, have the below crash.
[ 15.003004] Unable to handle kernel paging request at virtual address ffffffc009c975a0
[ 14.897469] pc : queued_spin_lock_slowpath+0x274/0x420
[ 14.898086] lr : kthread_queue_work+0xb8/0x114
[ 14.899280] sp : ffffffc00cb93c90
[ 14.899280] x29: ffffffc00cb93c90 x28: 0000000000000000 x27: 0000000000000000
[ 14.899284] x26: ffffffc0080bc414 x25: ffffffc0080bc4f0
...
[ 15.010633] CPU: 5 PID: 240 Comm: irq/82-husb311 Tainted: G O 6.1.75 #120
...
[ 15.029917] Call trace:
[ 15.030137] queued_spin_lock_slowpath+0x274/0x420
[ 15.030564] kthread_queue_work+0xb8/0x114
[ 15.030926] tcpm_cc_change+0x60/0xa4
[ 15.031256] tcpci_irq+0x150/0x240
[ 15.031554] husb311_irq+0x50/0x290
[ 15.031863] irq_thread_fn+0x30/0xb0
[ 15.032182] irq_thread+0x16c/0x2c4
[ 15.032490] kthread+0xdc/0xe0
[ 15.032765] ret_from_fork+0x10/0x20
...
This commit addresses the issue by disabling the IRQ before unregistering
the TCPCI port in both the remove and shutdown handlers. This ensures that
no new interrupts are handled after the port is unregistered, preventing
potential race conditions or use-after-free issues.
Fixes: 5e320d0310 ("usb: typec: husb311: set vbus off when shutdown")
Change-Id: Ie2cb85a15f6c63b019e4a000ba65205bc508e483
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
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.