[why]
Unlock is needed on the error handling path to prevent dead lock.
[how]
Fix this by adding drm_gem_unlock_reservations on the error handling path.
Signed-off-by: Yongzhi Liu <lyz_cs@xxxxxxxxxx>
---
drivers/gpu/drm/v3d/v3d_gem.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c
index c7ed2e1..0c989dc 100644
--- a/drivers/gpu/drm/v3d/v3d_gem.c
+++ b/drivers/gpu/drm/v3d/v3d_gem.c
@@ -798,6 +798,8 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
if (!render->base.perfmon) {
ret = -ENOENT;
+ drm_gem_unlock_reservations(last_job->bo,
+ last_job->bo_count, &acquire_ctx);
goto fail;
}
}
@@ -1027,6 +1029,8 @@ v3d_submit_csd_ioctl(struct drm_device *dev, void *data,
args->perfmon_id);
if (!job->base.perfmon) {
ret = -ENOENT;
+ drm_gem_unlock_reservations(clean_job->bo, clean_job->bo_count,
+ &acquire_ctx);
goto fail;
}
}
--
2.7.4
