diff options
| author | Vincent Cuissard <cuissard@marvell.com> | 2015-11-03 21:19:36 +0300 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2015-11-05 02:32:25 +0300 |
| commit | 82aff3ea3b87892ce1476dad83de211741b3ac00 (patch) | |
| tree | e43189a058731d662bbbd4223db6c7edd8d5d50e | |
| parent | 6f8c53695d6521c36052d39e29ac1e51ef37eba7 (diff) | |
| download | linux-82aff3ea3b87892ce1476dad83de211741b3ac00.tar.xz | |
NFC: nfcmrvl: avoid being stuck on FW dnld timeout
FW Download procedure can block on del_timer_sync because the
timer is not running. This patch check that timer is scheduled
before cancelling it.
Signed-off-by: Vincent Cuissard <cuissard@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| -rw-r--r-- | drivers/nfc/nfcmrvl/fw_dnld.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/nfc/nfcmrvl/fw_dnld.c b/drivers/nfc/nfcmrvl/fw_dnld.c index bfa771392b1f..f8dcdf4b24f6 100644 --- a/drivers/nfc/nfcmrvl/fw_dnld.c +++ b/drivers/nfc/nfcmrvl/fw_dnld.c @@ -113,9 +113,12 @@ static void fw_dnld_over(struct nfcmrvl_private *priv, u32 error) } atomic_set(&priv->ndev->cmd_cnt, 0); - del_timer_sync(&priv->ndev->cmd_timer); - del_timer_sync(&priv->fw_dnld.timer); + if (timer_pending(&priv->ndev->cmd_timer)) + del_timer_sync(&priv->ndev->cmd_timer); + + if (timer_pending(&priv->fw_dnld.timer)) + del_timer_sync(&priv->fw_dnld.timer); nfc_info(priv->dev, "FW loading over (%d)]\n", error); @@ -472,9 +475,12 @@ void nfcmrvl_fw_dnld_deinit(struct nfcmrvl_private *priv) void nfcmrvl_fw_dnld_recv_frame(struct nfcmrvl_private *priv, struct sk_buff *skb) { + /* Discard command timer */ + if (timer_pending(&priv->ndev->cmd_timer)) + del_timer_sync(&priv->ndev->cmd_timer); + /* Allow next command */ atomic_set(&priv->ndev->cmd_cnt, 1); - del_timer_sync(&priv->ndev->cmd_timer); /* Queue and trigger rx work */ skb_queue_tail(&priv->fw_dnld.rx_q, skb); |