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| author |   David S. Miller <davem@davemloft.net> | 2015-11-01 00:15:30 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-11-01 00:15:30 -0400 |
| commit | b75ec3af27bf011a760e2f44eb25a99b6fbb0fb3 (patch) | |
| tree | 89f4fbab2c6194b32a46eb771c4b158585bf0bb5 /drivers/gpu/drm/drm_dp_mst_topology.c | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next (diff) | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client (diff) | |
| download | linux-dev-b75ec3af27bf011a760e2f44eb25a99b6fbb0fb3.tar.xz linux-dev-b75ec3af27bf011a760e2f44eb25a99b6fbb0fb3.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/gpu/drm/drm_dp_mst_topology.c')
| -rw-r--r-- | drivers/gpu/drm/drm_dp_mst_topology.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 5bca390d9ae2..809959d56d78 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -1194,17 +1194,18 @@ static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device(struct drm_dp_mst_ list_for_each_entry(port, &mstb->ports, next) { if (port->port_num == port_num) { - if (!port->mstb) { + mstb = port->mstb; + if (!mstb) { DRM_ERROR("failed to lookup MSTB with lct %d, rad %02x\n", lct, rad[0]); - return NULL; + goto out; } - mstb = port->mstb; break; } } } kref_get(&mstb->kref); +out: mutex_unlock(&mgr->lock); return mstb; } |