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Subject[PATCH] NFC: Handle return value of skb_dequeue()
Date
skb_dequeue() will return NULL for an empty list or a pointer
to the head element.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
net/nfc/rawsock.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c
index e2188de..c6de1ac 100644
--- a/net/nfc/rawsock.c
+++ b/net/nfc/rawsock.c
@@ -201,6 +201,10 @@ static void rawsock_tx_work(struct work_struct *work)
}

skb = skb_dequeue(&sk->sk_write_queue);
+ if (!skb) {
+ rawsock_write_queue_purge(sk);
+ return;
+ }

sock_hold(sk);
rc = nfc_data_exchange(dev, target_idx, skb,
--
2.7.4
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