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[PATCH 4.2 009/134] nfc: netlink: Warning fix

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  [PATCH 4.2 009/134] nfc: netlink: Warning fix Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-09-27 00:20 +0200

#1233554 — [PATCH 4.2 009/134] nfc: netlink: Warning fix

4.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Christophe Ricard <christophe.ricard@gmail.com>

commit adca3c38d807b341a965d0aba8721d0784d8471b upstream.

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);

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/nfc/netlink.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -1524,6 +1524,7 @@ static int nfc_genl_vendor_cmd(struct sk
 		if (data_len == 0)
 			return -EINVAL;
 	} else {
+		data = NULL;
 		data_len = 0;
 	}
 


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