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qcacld-3.0: Avoid NULL dereference in hdd_init_qdf_ctx()

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Currently hdd_init_qdf_ctx() calls cds_get_context() to retrieve the
QDF Device context, and then writes into the context without
validating the pointer.  Add logic to validate the pointer before
using it.

Change-Id: Ib427d1348b3ff5b13689e24f69e4606f23ea767c
CRs-Fixed: 1042043
This commit is contained in:
Jeff Johnson 2016-07-20 11:03:04 -07:00
commit 615d4bbfff
1 changed files with 5 additions and 0 deletions
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5
core/hdd/src/wlan_hdd_driver_ops.c
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@ -294,6 +294,11 @@ void hdd_init_qdf_ctx(struct device *dev, void *bdev,
{
qdf_device_t qdf_dev = cds_get_context(QDF_MODULE_ID_QDF_DEVICE);
if (!qdf_dev) {
hdd_err("Invalid QDF device");
return;
}
qdf_dev->dev = dev;
qdf_dev->drv_hdl = bdev;
qdf_dev->bus_type = bus_type;