mirror of
https://github.com/torvalds/linux
synced 2024-09-20 02:57:25 +00:00
12abd735f0
Move GMU mutex initialization earlier to make sure that it is always
initialized. a6xx_destroy can be called from ther failure path before
GMU initialization.
This fixes the following backtrace:
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 0 PID: 58 at kernel/locking/mutex.c:582 __mutex_lock+0x1ec/0x3d0
Modules linked in:
CPU: 0 PID: 58 Comm: kworker/u16:1 Not tainted 6.3.0-rc5-00155-g187c06436519 #565
Hardware name: Qualcomm Technologies, Inc. SM8350 HDK (DT)
Workqueue: events_unbound deferred_probe_work_func
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __mutex_lock+0x1ec/0x3d0
lr : __mutex_lock+0x1ec/0x3d0
sp : ffff800008993620
x29: ffff800008993620 x28: 0000000000000002 x27: ffff47b253c52800
x26: 0000000001000606 x25: ffff47b240bb2810 x24: fffffffffffffff4
x23: 0000000000000000 x22: ffffc38bba15ac14 x21: 0000000000000002
x20: ffff800008993690 x19: ffff47b2430cc668 x18: fffffffffffe98f0
x17: 6f74616c75676572 x16: 20796d6d75642067 x15: 0000000000000038
x14: 0000000000000000 x13: ffffc38bbba050b8 x12: 0000000000000666
x11: 0000000000000222 x10: ffffc38bbba603e8 x9 : ffffc38bbba050b8
x8 : 00000000ffffefff x7 : ffffc38bbba5d0b8 x6 : 0000000000000222
x5 : 000000000000bff4 x4 : 40000000fffff222 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff47b240cb1880
Call trace:
__mutex_lock+0x1ec/0x3d0
mutex_lock_nested+0x2c/0x38
a6xx_destroy+0xa0/0x138
a6xx_gpu_init+0x41c/0x618
adreno_bind+0x188/0x290
component_bind_all+0x118/0x248
msm_drm_bind+0x1c0/0x670
try_to_bring_up_aggregate_device+0x164/0x1d0
__component_add+0xa8/0x16c
component_add+0x14/0x20
dsi_dev_attach+0x20/0x2c
dsi_host_attach+0x9c/0x144
devm_mipi_dsi_attach+0x34/0xac
lt9611uxc_attach_dsi.isra.0+0x84/0xfc
lt9611uxc_probe+0x5b8/0x67c
i2c_device_probe+0x1ac/0x358
really_probe+0x148/0x2ac
__driver_probe_device+0x78/0xe0
driver_probe_device+0x3c/0x160
__device_attach_driver+0xb8/0x138
bus_for_each_drv+0x84/0xe0
__device_attach+0x9c/0x188
device_initial_probe+0x14/0x20
bus_probe_device+0xac/0xb0
deferred_probe_work_func+0x8c/0xc8
process_one_work+0x2bc/0x594
worker_thread+0x228/0x438
kthread+0x108/0x10c
ret_from_fork+0x10/0x20
irq event stamp: 299345
hardirqs last enabled at (299345): [<ffffc38bb9ba61e4>] put_cpu_partial+0x1c8/0x22c
hardirqs last disabled at (299344): [<ffffc38bb9ba61dc>] put_cpu_partial+0x1c0/0x22c
softirqs last enabled at (296752): [<ffffc38bb9890434>] _stext+0x434/0x4e8
softirqs last disabled at (296741): [<ffffc38bb989669c>] ____do_softirq+0x10/0x1c
---[ end trace 0000000000000000 ]---
Fixes:
|
||
|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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.