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 08:21:50 +0100 |
| commit | 82d9824d94467b20469dde7291c68012a36e80bf (patch) | |
| tree | bbe1e34bee1c707ec81b9c877340c5991e05ec08 /drivers | |
| parent | ce71868acee24bdc9c8d436d5bc562bf43beab2f (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')
| -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 39c2a38e54f7..0c7ef250dcaf 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 |