drm/tegra: fix missing unlock on error

Add the missing unlock before return from function host1x_drm_init() and
host1x_drm_exit() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>

diff --git a/drivers/gpu/host1x/drm/drm.c b/drivers/gpu/host1x/drm/drm.c
index 78b07db..66629f3 100644 (file)
--- a/drivers/gpu/host1x/drm/drm.c
+++ b/drivers/gpu/host1x/drm/drm.c
@@ -148,6 +148,7 @@ int host1x_drm_init(struct host1x_drm *host1x, struct drm_device *drm)
                                dev_err(host1x->dev,
                                        "DRM setup failed for %s: %d\n",
                                        dev_name(client->dev), err);
+                               mutex_unlock(&host1x->clients_lock);
                                return err;
                        }
                }
@@ -175,6 +176,7 @@ int host1x_drm_exit(struct host1x_drm *host1x)
                                dev_err(host1x->dev,
                                        "DRM cleanup failed for %s: %d\n",
                                        dev_name(client->dev), err);
+                               mutex_unlock(&host1x->clients_lock);
                                return err;
                        }
                }