Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 35f2642f authored by Chia-I Wu's avatar Chia-I Wu Committed by Greg Kroah-Hartman
Browse files

drm/amdgpu: add a missing lock for AMDGPU_SCHED 



[ Upstream commit 2397e3d8d2e120355201a8310b61929f5a8bd2c0 ]

mgr->ctx_handles should be protected by mgr->lock.

v2: improve commit message
v3: add a Fixes tag

Signed-off-by: default avatarChia-I Wu <olvaffe@gmail.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Fixes: 52c6a62c ("drm/amdgpu: add interface for editing a foreign process's priority v3")
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 5cfe3f91

drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c

+5 −1
Original line number Diff line number Diff line
@@ -58,6 +58,7 @@ static int amdgpu_sched_process_priority_override(struct amdgpu_device *adev, 
{

	struct fd f = fdget(fd);

	struct amdgpu_fpriv *fpriv;

	struct amdgpu_ctx_mgr *mgr;

	struct amdgpu_ctx *ctx;

	uint32_t id;

	int r;
@@ -71,8 +72,11 @@ static int amdgpu_sched_process_priority_override(struct amdgpu_device *adev, 
		return r;

	}



	idr_for_each_entry(&fpriv->ctx_mgr.ctx_handles, ctx, id)

	mgr = &fpriv->ctx_mgr;

	mutex_lock(&mgr->lock);

	idr_for_each_entry(&mgr->ctx_handles, ctx, id)

		amdgpu_ctx_priority_override(ctx, priority);

	mutex_unlock(&mgr->lock);



	fdput(f);

	return 0;