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NFC: NCI: Fix nci_register_device init sequence 

All contexts have to be initiliazed before calling
nfc_register_device otherwise it is possible to call
nci_dev_up before ending the nci_register_device
function. In such case kernel will crash on non
initialized variables.

Signed-off-by: Vincent Cuissard <cuissard@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Vincent Cuissard 2014-07-22 19:48:39 +02:00 committed by Samuel Ortiz
parent cfdbeeafdb
commit 3c1c0f5dc8
1 changed files with 5 additions and 8 deletions
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13
net/nfc/nci/core.c
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@ -759,10 +759,6 @@ int nci_register_device(struct nci_dev *ndev)
struct device *dev = &ndev->nfc_dev->dev;
char name[32];
rc = nfc_register_device(ndev->nfc_dev);
if (rc)
goto exit;
ndev->flags = 0;
INIT_WORK(&ndev->cmd_work, nci_cmd_work);
@ -770,7 +766,7 @@ int nci_register_device(struct nci_dev *ndev)
ndev->cmd_wq = create_singlethread_workqueue(name);
if (!ndev->cmd_wq) {
rc = -ENOMEM;
goto unreg_exit;
goto exit;
}
INIT_WORK(&ndev->rx_work, nci_rx_work);
@ -800,6 +796,10 @@ int nci_register_device(struct nci_dev *ndev)
mutex_init(&ndev->req_lock);
rc = nfc_register_device(ndev->nfc_dev);
if (rc)
goto destroy_rx_wq_exit;
goto exit;
destroy_rx_wq_exit:
@ -808,9 +808,6 @@ destroy_rx_wq_exit:
destroy_cmd_wq_exit:
destroy_workqueue(ndev->cmd_wq);
unreg_exit:
nfc_unregister_device(ndev->nfc_dev);
exit:
return rc;
}