[alsa-devel] [PATCH] slimbus: fix a 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 --- drivers/slimbus/qcom-ngd-ctrl.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c index 71f094c9ec68..f3585777324c 100644 --- a/drivers/slimbus/qcom-ngd-ctrl.c +++ b/drivers/slimbus/qcom-ngd-ctrl.c @@ -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;
On 15/03/2019 06:20, Kangjie Lu wrote:
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
drivers/slimbus/qcom-ngd-ctrl.c | 4 ++++ 1 file changed, 4 insertions(+)
Thanks Applied.
--srini
participants (2)
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Kangjie Lu
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Srinivas Kandagatla