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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2018-11-20 12:06:01 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-11-20 14:32:16 +0000 |
| commit | e32c8d3caefbb8ec734a0a79c8d4245f38c99d2a (patch) | |
| tree | beceacb272654e93d0c3feb7a73e9355ce5d20f3 /drivers/gpu/drm/i915/selftests/intel_hangcheck.c | |
| parent | 2ac5e38ea4203852d6e99edd3cf11f044b0a409f (diff) | |
| download | linux-e32c8d3caefbb8ec734a0a79c8d4245f38c99d2a.tar.bz2 | |
drm/i915/selftests: Hold task reference to reset worker
As the worker may exit by itself, we need to hold a task reference to it
in the parent.
References: https://bugs.freedesktop.org/show_bug.cgi?id=108735
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181120120601.24083-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/selftests/intel_hangcheck.c')
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/intel_hangcheck.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c index 51d0e2bed9e1..defe671130ab 100644 --- a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c +++ b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c @@ -1150,6 +1150,7 @@ static int __igt_reset_evict_vma(struct drm_i915_private *i915, tsk = NULL; goto out_reset; } + get_task_struct(tsk); wait_for_completion(&arg.completion); @@ -1172,6 +1173,8 @@ out_reset: /* The reset, even indirectly, should take less than 10ms. */ igt_wedge_on_timeout(&w, i915, HZ / 10 /* 100ms timeout*/) err = kthread_stop(tsk); + + put_task_struct(tsk); } mutex_lock(&i915->drm.struct_mutex); |