WSL2-Linux-Kernel/drivers/extcon
bumwoo lee 368e68ad6d extcon: Modify extcon device to be created after driver data is set
[ Upstream commit 5dcc2afe71 ]

Currently, someone can invoke the sysfs such as state_show()
intermittently before dev_set_drvdata() is done.
And it can be a cause of kernel Oops because of edev is Null at that time.
So modified the driver registration to after setting drviver data.

- Oops's backtrace.

Backtrace:
[<c067865c>] (state_show) from [<c05222e8>] (dev_attr_show)
[<c05222c0>] (dev_attr_show) from [<c02c66e0>] (sysfs_kf_seq_show)
[<c02c6648>] (sysfs_kf_seq_show) from [<c02c496c>] (kernfs_seq_show)
[<c02c4938>] (kernfs_seq_show) from [<c025e2a0>] (seq_read)
[<c025e11c>] (seq_read) from [<c02c50a0>] (kernfs_fop_read)
[<c02c5064>] (kernfs_fop_read) from [<c0231cac>] (__vfs_read)
[<c0231c5c>] (__vfs_read) from [<c0231ee0>] (vfs_read)
[<c0231e34>] (vfs_read) from [<c0232464>] (ksys_read)
[<c02323f0>] (ksys_read) from [<c02324fc>] (sys_read)
[<c02324e4>] (sys_read) from [<c00091d0>] (__sys_trace_return)

Signed-off-by: bumwoo lee <bw365.lee@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-14 18:36:22 +02:00
..
Kconfig extcon: sm5502: Add support for SM5504 2021-06-21 18:28:01 +09:00
Makefile
devres.c
extcon-adc-jack.c
extcon-axp288.c extcon: Fix extcon_get_extcon_dev() error handling 2022-06-14 18:36:21 +02:00
extcon-fsa9480.c
extcon-gpio.c
extcon-intel-cht-wc.c
extcon-intel-int3496.c
extcon-intel-mrfld.c extcon: intel-mrfld: Sync hardware and software state on init 2021-06-21 18:28:00 +09:00
extcon-intel.h
extcon-max3355.c
extcon-max8997.c Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
extcon-max14577.c extcon: extcon-max14577: Fix potential work-queue cancellation race 2021-06-17 13:21:44 +02:00
extcon-max77693.c extcon: extcon-max77693.c: Fix potential work-queue cancellation race 2021-06-17 13:22:02 +02:00
extcon-max77843.c
extcon-palmas.c
extcon-ptn5150.c extcon: ptn5150: Add queue work sync before driver release 2022-06-14 18:36:07 +02:00
extcon-qcom-spmi-misc.c
extcon-rt8973a.c
extcon-rt8973a.h
extcon-sm5502.c extcon: sm5502: Add support for SM5504 2021-06-21 18:28:01 +09:00
extcon-sm5502.h extcon: sm5502: Add support for SM5504 2021-06-21 18:28:01 +09:00
extcon-usb-gpio.c
extcon-usbc-cros-ec.c
extcon-usbc-tusb320.c
extcon.c extcon: Modify extcon device to be created after driver data is set 2022-06-14 18:36:22 +02:00
extcon.h