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

From: Greg Kroah-Hartman
Date: Sat Sep 26 2015 - 18:15:39 EST

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


From: Christophe Ricard <christophe.ricard@xxxxxxxxx>

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@xxxxxx>
Signed-off-by: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

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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