From 2c206fb7fea4676f08c4b356003ada7ae462bed5 Mon Sep 17 00:00:00 2001 From: Waldemar Rymarkiewicz Date: Wed, 3 Apr 2013 08:02:05 +0200 Subject: [PATCH] NFC: pn533: Keep cmd context in pn533 struct Keep cmd context in pn533 struct instead of only cmd code. The context already includes cmd_code. Signed-off-by: Waldemar Rymarkiewicz Signed-off-by: Samuel Ortiz --- drivers/nfc/pn533.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c index 2f39209507d4..147ad05122b3 100644 --- a/drivers/nfc/pn533.c +++ b/drivers/nfc/pn533.c @@ -334,7 +334,7 @@ struct pn533 { void *cmd_complete_arg; void *cmd_complete_mi_arg; struct mutex cmd_lock; - u8 cmd; + struct pn533_cmd *cmd; struct pn533_poll_modulations *poll_mod_active[PN533_POLL_MOD_MAX + 1]; u8 poll_mod_count; @@ -502,7 +502,8 @@ static struct pn533_frame_ops pn533_std_frame_ops = { static bool pn533_rx_frame_is_cmd_response(struct pn533 *dev, void *frame) { - return (dev->ops->get_cmd_code(frame) == PN533_CMD_RESPONSE(dev->cmd)); + return (dev->ops->get_cmd_code(frame) == + PN533_CMD_RESPONSE(dev->cmd->cmd_code)); } @@ -648,7 +649,6 @@ static int __pn533_send_frame_async(struct pn533 *dev, { int rc; - dev->cmd = dev->ops->get_cmd_code(out->data); dev->cmd_complete = cmd_complete; dev->cmd_complete_arg = arg; @@ -707,8 +707,7 @@ static int pn533_send_async_complete(struct pn533 *dev, void *arg, int status) rc = cmd->complete_cb(dev, cmd->complete_cb_context, ERR_PTR(status)); dev_kfree_skb(resp); - kfree(cmd); - return rc; + goto done; } skb_put(resp, dev->ops->rx_frame_size(resp->data)); @@ -717,7 +716,9 @@ static int pn533_send_async_complete(struct pn533 *dev, void *arg, int status) rc = cmd->complete_cb(dev, cmd->complete_cb_context, resp); +done: kfree(cmd); + dev->cmd = NULL; return rc; } @@ -754,6 +755,7 @@ static int __pn533_send_async(struct pn533 *dev, u8 cmd_code, goto error; dev->cmd_pending = 1; + dev->cmd = cmd; goto unlock; } @@ -862,6 +864,8 @@ static int pn533_send_cmd_direct_async(struct pn533 *dev, u8 cmd_code, if (rc < 0) { dev_kfree_skb(resp); kfree(cmd); + } else { + dev->cmd = cmd; } return rc; @@ -893,7 +897,10 @@ static void pn533_wq_cmd(struct work_struct *work) dev_kfree_skb(cmd->req); dev_kfree_skb(cmd->resp); kfree(cmd); + return; } + + dev->cmd = cmd; } struct pn533_sync_cmd_response { -- 2.30.2