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-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drm.c10
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drv.h5
2 files changed, 11 insertions, 4 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 96490cc855cc..4c69ac2a8295 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -562,6 +562,7 @@ nouveau_drm_device_init(struct drm_device *dev)
nvkm_dbgopt(nouveau_debug, "DRM");
INIT_LIST_HEAD(&drm->clients);
+ mutex_init(&drm->clients_lock);
spin_lock_init(&drm->tile.lock);
/* workaround an odd issue on nvc1 by disabling the device's
@@ -659,6 +660,7 @@ nouveau_drm_device_fini(struct drm_device *dev)
nouveau_cli_fini(&drm->client);
nouveau_cli_fini(&drm->master);
nvif_parent_dtor(&drm->parent);
+ mutex_destroy(&drm->clients_lock);
kfree(drm);
}
@@ -1090,9 +1092,9 @@ nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
fpriv->driver_priv = cli;
- mutex_lock(&drm->client.mutex);
+ mutex_lock(&drm->clients_lock);
list_add(&cli->head, &drm->clients);
- mutex_unlock(&drm->client.mutex);
+ mutex_unlock(&drm->clients_lock);
done:
if (ret && cli) {
@@ -1118,9 +1120,9 @@ nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
nouveau_abi16_fini(cli->abi16);
mutex_unlock(&cli->mutex);
- mutex_lock(&drm->client.mutex);
+ mutex_lock(&drm->clients_lock);
list_del(&cli->head);
- mutex_unlock(&drm->client.mutex);
+ mutex_unlock(&drm->clients_lock);
nouveau_cli_fini(cli);
kfree(cli);
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index ba65f136cf48..b2a970aa9bf4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -139,6 +139,11 @@ struct nouveau_drm {
struct list_head clients;
+ /**
+ * @clients_lock: Protects access to the @clients list of &struct nouveau_cli.
+ */
+ struct mutex clients_lock;
+
u8 old_pm_cap;
struct {