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| author | Xiang Chen <chenxiang66@hisilicon.com> | 2019-11-12 17:30:58 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-11-12 22:21:34 -0500 |
| commit | 7c0ecd40c31246a2d0de81879966436ff07505a4 (patch) | |
| tree | 96308ce3bbff6904b232d2c67782e22e8b4876fc /tools/perf/scripts/python | |
| parent | scsi: hisi_sas: Return directly if init hardware failed (diff) | |
| download | linux-7c0ecd40c31246a2d0de81879966436ff07505a4.tar.gz linux-7c0ecd40c31246a2d0de81879966436ff07505a4.zip | |
scsi: hisi_sas: Relocate call to hisi_sas_debugfs_exit()
Currently we call function hisi_sas_debugfs_exit() to remove debugfs_dir
before freeing interrupt irqs and destroying workqueue in the driver remove
path.
If a dump is triggered before function hisi_sas_debugfs_exit() but
debugfs_work may be called after it, so it may refer to already removed
debugfs_dir which will cause NULL pointer dereference.
To avoid it, put function hisi_sas_debugfs_exit() after free_irqs and
destroy workqueue when removing hisi_sas driver.
Link: https://lore.kernel.org/r/1573551059-107873-4-git-send-email-john.garry@huawei.com
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions