[v5] coresight: Fix possible deadlock in coresight_panic_cb

[PATCH v5 0/3] coresight: Fix possible deadlock in coresight_panic_cb

Sean Anderson posted 3 patches 6 days, 8 hours ago

Diff against v1 v2 v3 v4
Download series mbox

drivers/hwtracing/coresight/coresight-core.c | 71 ++++++++------------
include/linux/coresight.h                    |  2 +
2 files changed, 30 insertions(+), 43 deletions(-)

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[PATCH v5 0/3] coresight: Fix possible deadlock in coresight_panic_cb

Posted by Sean Anderson 6 days, 8 hours ago

This time with the notifier in csdev.

Changes in v5:
- Split reordering of coresight_device_release into a separate patch
- Check csdev mode before calling sync()

Changes in v4:
- Fix fwnode leak in coresight_register error path
- Move the panic notifier into csdev and restore the panic sync API

Changes in v3:
- Rewrite patch to remove the panic sync API entirely

Changes in v2:
- Add a comment describing csdev_lock/list
- Consolidate list removal in coresight_device_release

Sean Anderson (3):
  coresight: Fix fwnode leak in coresight_register error path
  coresight: Reorder coresight_device_release to match
    coresight_register
  coresight: Fix possible deadlock in coresight_panic_cb

 drivers/hwtracing/coresight/coresight-core.c | 71 ++++++++------------
 include/linux/coresight.h                    |  2 +
 2 files changed, 30 insertions(+), 43 deletions(-)

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2.35.1.1320.gc452695387.dirty