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| author | Steven Rostedt (Red Hat) <[email protected]> | 2016-09-24 02:57:13 +0000 |
|---|---|---|
| committer | Steven Rostedt <[email protected]> | 2016-09-25 14:27:08 +0000 |
| commit | 1245800c0f96eb6ebb368593e251d66c01e61022 (patch) | |
| tree | c945fb377258b480d806786d33fbd0f6ce118022 /drivers/gpu/drm/amd/amdgpu/cik_sdma.c | |
| parent | tracing: Fix tick_stop tracepoint symbols for user export (diff) | |
| download | kernel-1245800c0f96eb6ebb368593e251d66c01e61022.tar.gz kernel-1245800c0f96eb6ebb368593e251d66c01e61022.zip | |
tracing: Move mutex to protect against resetting of seq data
The iter->seq can be reset outside the protection of the mutex. So can
reading of user data. Move the mutex up to the beginning of the function.
Fixes: d7350c3f45694 ("tracing/core: make the read callbacks reentrants")
Cc: [email protected] # 2.6.30+
Reported-by: Al Viro <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/cik_sdma.c')
0 files changed, 0 insertions, 0 deletions