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| author | bumwoo lee <bw365.lee@samsung.com> | 2022-04-27 06:00:05 +0300 |
|---|---|---|
| committer | Chanwoo Choi <cw00.choi@samsung.com> | 2022-05-13 11:03:41 +0300 |
| commit | 5dcc2afe716d69f5112ce035cb14f007461ff189 (patch) | |
| tree | 0323bc2e8c437f68772be69377622546ddf1d40f /Kconfig | |
| parent | 5faf7cbaff459f885f09eed1e685a3cf9a19c78e (diff) | |
| download | linux-5dcc2afe716d69f5112ce035cb14f007461ff189.tar.xz | |
extcon: Modify extcon device to be created after driver data is set
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>
Diffstat (limited to 'Kconfig')
0 files changed, 0 insertions, 0 deletions