ath6kl: create ath6kl_htc_reset()

When rebooting hardware we need to reset the htc state in ath6kl_htc_stop().

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --git a/drivers/net/wireless/ath/ath6kl/htc.c b/drivers/net/wireless/ath/ath6kl/htc.c
index d03456b..04b4070 100644 (file)
--- a/drivers/net/wireless/ath/ath6kl/htc.c
+++ b/drivers/net/wireless/ath/ath6kl/htc.c
@@ -2656,6 +2656,44 @@ int ath6kl_htc_start(struct htc_target *target)
        return status;
 }
 
+static int ath6kl_htc_reset(struct htc_target *target)
+{
+       u32 block_size, ctrl_bufsz;
+       struct htc_packet *packet;
+       int i;
+
+       reset_ep_state(target);
+
+       block_size = target->dev->ar->mbox_info.block_size;
+
+       ctrl_bufsz = (block_size > HTC_MAX_CTRL_MSG_LEN) ?
+                     (block_size + HTC_HDR_LENGTH) :
+                     (HTC_MAX_CTRL_MSG_LEN + HTC_HDR_LENGTH);
+
+       for (i = 0; i < NUM_CONTROL_BUFFERS; i++) {
+               packet = kzalloc(sizeof(*packet), GFP_KERNEL);
+               if (!packet)
+                       return -ENOMEM;
+
+               packet->buf_start = kzalloc(ctrl_bufsz, GFP_KERNEL);
+               if (!packet->buf_start) {
+                       kfree(packet);
+                       return -ENOMEM;
+               }
+
+               packet->buf_len = ctrl_bufsz;
+               if (i < NUM_CONTROL_RX_BUFFERS) {
+                       packet->act_len = 0;
+                       packet->buf = packet->buf_start;
+                       packet->endpoint = ENDPOINT_0;
+                       list_add_tail(&packet->list, &target->free_ctrl_rxbuf);
+               } else
+                       list_add_tail(&packet->list, &target->free_ctrl_txbuf);
+       }
+
+       return 0;
+}
+
 /* htc_stop: stop interrupt reception, and flush all queued buffers */
 void ath6kl_htc_stop(struct htc_target *target)
 {
@@ -2674,15 +2712,13 @@ void ath6kl_htc_stop(struct htc_target *target)
 
        ath6kl_htc_flush_rx_buf(target);
 
-       reset_ep_state(target);
+       ath6kl_htc_reset(target);
 }
 
 void *ath6kl_htc_create(struct ath6kl *ar)
 {
        struct htc_target *target = NULL;
-       struct htc_packet *packet;
-       int status = 0, i = 0;
-       u32 block_size, ctrl_bufsz;
+       int status = 0;
 
        target = kzalloc(sizeof(*target), GFP_KERNEL);
        if (!target) {
@@ -2694,7 +2730,7 @@ void *ath6kl_htc_create(struct ath6kl *ar)
        if (!target->dev) {
                ath6kl_err("unable to allocate memory\n");
                status = -ENOMEM;
-               goto fail_create_htc;
+               goto err_htc_cleanup;
        }
 
        spin_lock_init(&target->htc_lock);
@@ -2709,49 +2745,20 @@ void *ath6kl_htc_create(struct ath6kl *ar)
        target->dev->htc_cnxt = target;
        target->ep_waiting = ENDPOINT_MAX;
 
-       reset_ep_state(target);
-
        status = ath6kl_hif_setup(target->dev);
-
        if (status)
-               goto fail_create_htc;
-
-       block_size = ar->mbox_info.block_size;
-
-       ctrl_bufsz = (block_size > HTC_MAX_CTRL_MSG_LEN) ?
-                     (block_size + HTC_HDR_LENGTH) :
-                     (HTC_MAX_CTRL_MSG_LEN + HTC_HDR_LENGTH);
+               goto err_htc_cleanup;
 
-       for (i = 0; i < NUM_CONTROL_BUFFERS; i++) {
-               packet = kzalloc(sizeof(*packet), GFP_KERNEL);
-               if (!packet)
-                       break;
-
-               packet->buf_start = kzalloc(ctrl_bufsz, GFP_KERNEL);
-               if (!packet->buf_start) {
-                       kfree(packet);
-                       break;
-               }
+       status = ath6kl_htc_reset(target);
+       if (status)
+               goto err_htc_cleanup;
 
-               packet->buf_len = ctrl_bufsz;
-               if (i < NUM_CONTROL_RX_BUFFERS) {
-                       packet->act_len = 0;
-                       packet->buf = packet->buf_start;
-                       packet->endpoint = ENDPOINT_0;
-                       list_add_tail(&packet->list, &target->free_ctrl_rxbuf);
-               } else
-                       list_add_tail(&packet->list, &target->free_ctrl_txbuf);
-       }
+       return target;
 
-fail_create_htc:
-       if (i != NUM_CONTROL_BUFFERS || status) {
-               if (target) {
-                       ath6kl_htc_cleanup(target);
-                       target = NULL;
-               }
-       }
+err_htc_cleanup:
+       ath6kl_htc_cleanup(target);
 
-       return target;
+       return NULL;
 }
 
 /* cleanup the HTC instance */