nfc: netlink: Warning fix

When NFC_ATTR_VENDOR_DATA is not set, data_len is 0 and data is NULL.

Fixes the following warning:

net/nfc/netlink.c:1536:3: warning: 'data' may be used uninitialized
+in this function [-Wmaybe-uninitialized]
      return cmd->doit(dev, data, data_len);

Cc: stable@vger.kernel.org
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 81dfaaacfc4d..73d1ca7c546c 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -1524,6 +1524,7 @@ static int nfc_genl_vendor_cmd(struct sk_buff *skb,
                 if (data_len == 0)
                         return -EINVAL;
         } else {
+                data = NULL;
                 data_len = 0;
         }