slimbus: fix a potential NULL pointer dereference in of_qcom_slim_ngd_register

In case platform_device_alloc fails, the fix returns an error
code to avoid the NULL pointer dereference.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kangjie Lu 2019-04-13 11:34:47 +01:00 коммит произвёл Greg Kroah-Hartman
Родитель b281218ad4
Коммит 06d5d6b7f9
1 изменённых файлов: 4 добавлений и 0 удалений

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@ -1342,6 +1342,10 @@ static int of_qcom_slim_ngd_register(struct device *parent,
return -ENOMEM;
ngd->pdev = platform_device_alloc(QCOM_SLIM_NGD_DRV_NAME, id);
if (!ngd->pdev) {
kfree(ngd);
return -ENOMEM;
}
ngd->id = id;
ngd->pdev->dev.parent = parent;
ngd->pdev->driver_override = QCOM_SLIM_NGD_DRV_NAME;