diff options
| author |   Leo Yan <leo.yan@arm.com> | 2026-02-09 12:44:35 +0000 |
|---|---|---|
| committer |   Suzuki K Poulose <suzuki.poulose@arm.com> | 2026-02-25 11:14:44 +0000 |
| commit | a6c4da4b95a3cfe4f6031bef2d913331dc186142 (patch) | |
| tree | 77d4cf6b3c200b468914ccb0fcb8a857b0c93e14 /include/uapi/linux/ssh:/git@git.zx2c4.com | |
| parent | coresight: Get parent device reference after sink ID map allocation (diff) | |
coresight: Protect unregistration with mutex
The device registration is protected by CoreSight mutex to ensure the
atomic operations when adding a device onto bus. One the other hand,
the locking is absent when unregister a device.
Use mutex to ensure atomicity on device unregistration. During
unregistration, unbinding the associated CTI device is not included in
the locking region, as CTI has its own locking mechanism.
Fixes: 8c1d3f79d9ca ("coresight: core: Fix coresight device probe failure issue")
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20260209-arm_coresight_refactor_dev_register-v4-3-62d6042f76f7@arm.com
Diffstat (limited to 'include/uapi/linux/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions