diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_events.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c index 75847c5d5957..e449bc70bf08 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_events.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.c @@ -633,14 +633,19 @@ int kfd_set_event(struct kfd_process *p, uint32_t event_id) rcu_read_lock(); ev = lookup_event_by_id(p, event_id); + if (!ev) { + ret = -EINVAL; + goto unlock_rcu; + } spin_lock(&ev->lock); - if (ev && event_can_be_cpu_signaled(ev)) + if (event_can_be_cpu_signaled(ev)) set_event(ev); else ret = -EINVAL; spin_unlock(&ev->lock); +unlock_rcu: rcu_read_unlock(); return ret; } @@ -659,14 +664,19 @@ int kfd_reset_event(struct kfd_process *p, uint32_t event_id) rcu_read_lock(); ev = lookup_event_by_id(p, event_id); + if (!ev) { + ret = -EINVAL; + goto unlock_rcu; + } spin_lock(&ev->lock); - if (ev && event_can_be_cpu_signaled(ev)) + if (event_can_be_cpu_signaled(ev)) reset_event(ev); else ret = -EINVAL; spin_unlock(&ev->lock); +unlock_rcu: rcu_read_unlock(); return ret; |