NFC: pn533: Cleanup pn533_cmd_complete_t

'params' arg in pn533_cmd_complete_t definition has been deprecated and
currently is not in use (resp skb is pass in arg ptr), so remove it.

Also 'params_len' arg is used as a transfer status indicator, so simply
reword it appropriately.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 7 insertions, 22 deletions

diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index 82867a036ccc..db13cd798149 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -109,8 +109,6 @@ MODULE_DEVICE_TABLE(usb, pn533_table);
 
 /* PN533 Commands */
 #define PN533_FRAME_CMD(f) (f->data[1])
-#define PN533_FRAME_CMD_PARAMS_PTR(f) (&f->data[2])
-#define PN533_FRAME_CMD_PARAMS_LEN(f) (f->datalen - 2)
 
 #define PN533_CMD_GET_FIRMWARE_VERSION 0x02
 #define PN533_CMD_RF_CONFIGURATION 0x32
@@ -135,8 +133,7 @@ MODULE_DEVICE_TABLE(usb, pn533_table);
 
 struct pn533;
 
-typedef int (*pn533_cmd_complete_t) (struct pn533 *dev, void *arg,
-                                        u8 *params, int params_len);
+typedef int (*pn533_cmd_complete_t) (struct pn533 *dev, void *arg, int status);
 
 typedef int (*pn533_send_async_complete_t) (struct pn533 *dev, void *arg,
                                         struct sk_buff *resp);
@@ -458,19 +455,9 @@ static bool pn533_rx_frame_is_cmd_response(struct pn533_frame *frame, u8 cmd)
 static void pn533_wq_cmd_complete(struct work_struct *work)
 {
         struct pn533 *dev = container_of(work, struct pn533, cmd_complete_work);
-        struct pn533_frame *in_frame;
         int rc;
 
-        in_frame = dev->wq_in_frame;
-
-        if (dev->wq_in_error)
-                rc = dev->cmd_complete(dev, dev->cmd_complete_arg, NULL,
-                                                        dev->wq_in_error);
-        else
-                rc = dev->cmd_complete(dev, dev->cmd_complete_arg,
-                                        PN533_FRAME_CMD_PARAMS_PTR(in_frame),
-                                        PN533_FRAME_CMD_PARAMS_LEN(in_frame));
-
+        rc = dev->cmd_complete(dev, dev->cmd_complete_arg, dev->wq_in_error);
         if (rc != -EINPROGRESS)
                 queue_work(dev->wq, &dev->cmd_work);
 }
@@ -664,8 +651,7 @@ struct pn533_send_async_complete_arg {
         struct sk_buff *req;
 };
 
-static int pn533_send_async_complete(struct pn533 *dev, void *_arg, u8 *params,
-                                     int params_len)
+static int pn533_send_async_complete(struct pn533 *dev, void *_arg, int status)
 {
         struct pn533_send_async_complete_arg *arg = _arg;
 
@@ -677,12 +663,12 @@ static int pn533_send_async_complete(struct pn533 *dev, void *_arg, u8 *params,
 
         dev_kfree_skb(req);
 
-        if (params_len < 0) {
+        if (status < 0) {
                 arg->complete_cb(dev, arg->complete_cb_context,
-                                 ERR_PTR(params_len));
-                rc = params_len;
+                                 ERR_PTR(status));
                 dev_kfree_skb(resp);
-                goto out;
+                kfree(arg);
+                return status;
         }
 
         skb_put(resp, PN533_FRAME_SIZE(frame));
@@ -691,7 +677,6 @@ static int pn533_send_async_complete(struct pn533 *dev, void *_arg, u8 *params,
 
         rc = arg->complete_cb(dev, arg->complete_cb_context, resp);
 
-out:
         kfree(arg);
         return rc;
 }