ath9k_htc: Fix HTC layer memleak

Messages that are generated by the HTC layer
don't have any TX callback endpoints assigned to them.
Consequently, the allocated SKBs are never freed.

Fix this issue by handling this case in the HTC layer
itself.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath9k/htc_hst.c b/drivers/net/wireless/ath/ath9k/htc_hst.c
index 30f608bfc56..24d7b886fe2 100644
--- a/drivers/net/wireless/ath/ath9k/htc_hst.c
+++ b/drivers/net/wireless/ath/ath9k/htc_hst.c
@@ -326,11 +326,13 @@ void ath9k_htc_txcompletion_cb(struct htc_target *htc_handle,
         if (htc_handle->htc_flags & HTC_OP_CONFIG_PIPE_CREDITS) {
                 complete(&htc_handle->cmd_wait);
                 htc_handle->htc_flags &= ~HTC_OP_CONFIG_PIPE_CREDITS;
+                goto ret;
         }
 
         if (htc_handle->htc_flags & HTC_OP_START_WAIT) {
                 complete(&htc_handle->cmd_wait);
                 htc_handle->htc_flags &= ~HTC_OP_START_WAIT;
+                goto ret;
         }
 
         if (skb) {
@@ -343,6 +345,11 @@ void ath9k_htc_txcompletion_cb(struct htc_target *htc_handle,
                                                   htc_hdr->endpoint_id, txok);
                 }
         }
+
+        return;
+ret:
+        /* HTC-generated packets are freed here. */
+        dev_kfree_skb_any(skb);
 }
 
 /*