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| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2017-10-03 02:26:32 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-10-31 12:39:22 -0400 |
| commit | 7fc4fdb9e1bd821c0bd39543d233ac5246aef2de (patch) | |
| tree | 47ee674505294dae57ba6823efcf8eec4eb48d41 /tools/perf/scripts/python | |
| parent | media: v4l: async: Fix notifier complete callback error handling (diff) | |
| download | linux-7fc4fdb9e1bd821c0bd39543d233ac5246aef2de.tar.gz linux-7fc4fdb9e1bd821c0bd39543d233ac5246aef2de.zip | |
media: v4l: async: Correctly serialise async sub-device unregistration
The check whether an async sub-device is bound to a notifier was performed
without list_lock held, making it possible for another process to
unbind the async sub-device before the sub-device unregistration function
proceeds to take the lock.
Fix this by first acquiring the lock and then proceeding with the check.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions