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NFC: trf7970a: Cancel timer when error encountered 

Some paths leave a timer still running when
trf7970a_send_err_upstream() is called.  This
can cause a timeout to occur in a subsequent
transaction making it fail.  Fix this by ensuring
there is no timer running before sending an error
upstream.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Mark A. Greer 2014-09-02 15:12:43 -07:00 committed by Samuel Ortiz
parent 851ee3cbf8
commit 6fb9edcb43
1 changed files with 2 additions and 0 deletions
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2
drivers/nfc/trf7970a.c
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@ -506,6 +506,8 @@ static void trf7970a_send_err_upstream(struct trf7970a *trf, int errno)
{
dev_dbg(trf->dev, "Error - state: %d, errno: %d\n", trf->state, errno);
cancel_delayed_work(&trf->timeout_work);
kfree_skb(trf->rx_skb);
trf->rx_skb = ERR_PTR(errno);