nfc: nci: hci: Add check on skb nci_hci_send_cmd parameter
skb can be NULL and may lead to a NULL pointer error. Add a check condition before setting HCI rx buffer. Cc: stable@vger.kernel.org Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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@ -233,7 +233,7 @@ int nci_hci_send_cmd(struct nci_dev *ndev, u8 gate, u8 cmd,
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r = nci_request(ndev, nci_hci_send_data_req, (unsigned long)&data,
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r = nci_request(ndev, nci_hci_send_data_req, (unsigned long)&data,
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msecs_to_jiffies(NCI_DATA_TIMEOUT));
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msecs_to_jiffies(NCI_DATA_TIMEOUT));
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if (r == NCI_STATUS_OK)
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if (r == NCI_STATUS_OK && skb)
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*skb = conn_info->rx_skb;
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*skb = conn_info->rx_skb;
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return r;
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return r;
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