From: Benjamin Gaignard benjamin.gaignard@linaro.org

When dev->driver->master_set() failed ioctl call return 0 but the caller is not the DRM-Master because file_priv->is_master = 0. Fix that by returning to ioctl caller the driver master_set error code.

Signed-off-by: Benjamin Gaignard benjamin.gaignard@linaro.org --- drivers/gpu/drm/drm_stub.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index 16f3ec5..a2f8c92 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -203,7 +203,7 @@ EXPORT_SYMBOL(drm_master_put); int drm_setmaster_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { - int ret; + int ret = 0;

if (file_priv->is_master) return 0; @@ -229,7 +229,7 @@ int drm_setmaster_ioctl(struct drm_device *dev, void *data, } mutex_unlock(&dev->struct_mutex);

- return 0; + return ret; }

int drm_dropmaster_ioctl(struct drm_device *dev, void *data,