Add check for the return value of alloc_ordered_workqueue as it may return NULL pointer. Moreover, use the destroy_workqueue in the later fails in order to avoid memory leak.

Signed-off-by: Jiasheng Jiang jiasheng@iscas.ac.cn --- Changelog:

v1 -> v2:

1. Convert "goto err_destroy_workqueue" into "goto err_msm_unit" and remove "err_destroy_workqueue" label. --- drivers/gpu/drm/msm/msm_drv.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 8b0b0ac74a6f..54be323ed33d 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -418,6 +418,8 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv) priv->dev = ddev;

priv->wq = alloc_ordered_workqueue("msm", 0); + if (!priv->wq) + return -ENOMEM;

INIT_LIST_HEAD(&priv->objects); mutex_init(&priv->obj_lock); @@ -440,12 +442,12 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)

ret = msm_init_vram(ddev); if (ret) - return ret; + goto err_msm_uninit;

/* Bind all our sub-components: */ ret = component_bind_all(dev, ddev); if (ret) - return ret; + goto err_msm_uninit;

dma_set_max_seg_size(dev, UINT_MAX);