diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2016-12-13 09:29:55 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-09 08:07:45 +0100 |
| commit | d32d4b3d7c9f6164170c0277740fd45bcd364bf6 (patch) | |
| tree | dc3f1552436f41241b06b34167a67b2e7045ef4d /drivers/gpu | |
| parent | 3a2990e67b056d2f9fe8053569cc9752b000e8fa (diff) | |
drm/nouveau/ltc: protect clearing of comptags with mutex
commit f4e65efc88b64c1dbca275d42a188edccedb56c6 upstream.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c index 85b1464c0194..587c52f08d3f 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c @@ -47,8 +47,10 @@ nvkm_ltc_tags_clear(struct nvkm_ltc *ltc, u32 first, u32 count) BUG_ON((first > limit) || (limit >= ltc->num_tags)); + mutex_lock(<c->subdev.mutex); ltc->func->cbc_clear(ltc, first, limit); ltc->func->cbc_wait(ltc); + mutex_unlock(<c->subdev.mutex); } int |