[PATCH 07/10] drm/msm: fix missing wq allocation error handling

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Add the missing sanity check to handle workqueue allocation failures.

Fixes: c8afe684c95c ("drm/msm: basic KMS driver for snapdragon")
Cc: stable@xxxxxxxxxxxxxxx      # 3.12
Cc: Rob Clark <robdclark@xxxxxxxxx>
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
---
 drivers/gpu/drm/msm/msm_drv.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 41cc6cd690cd..ac3b77dbfacc 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -432,6 +432,10 @@ 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) {
+		ret = -ENOMEM;
+		goto err_put_dev;
+	}
 
 	INIT_LIST_HEAD(&priv->objects);
 	mutex_init(&priv->obj_lock);
-- 
2.39.2




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