staging: ath6kl: Fixing a memory leak

Virtual Scatter Gather Lists not getting freed during the HTCStop(). The
patch adds some clean up code in the code path.

Signed-off-by: Vipin Mehta <vmehta@atheros.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

3 files changed, 13 insertions, 0 deletions

diff --git a/drivers/staging/ath6kl/htc2/AR6000/ar6k.c b/drivers/staging/ath6kl/htc2/AR6000/ar6k.c
index 6083231cdbb0..ff0480b5254b 100644
--- a/drivers/staging/ath6kl/htc2/AR6000/ar6k.c
+++ b/drivers/staging/ath6kl/htc2/AR6000/ar6k.c
@@ -810,6 +810,15 @@ static int DevSetupVirtualScatterSupport(AR6K_DEVICE *pDev)
     return status;
 }
 
+int DevCleanupMsgBundling(AR6K_DEVICE *pDev)
+{
+    if(NULL != pDev)
+    {
+        DevCleanupVirtualScatterSupport(pDev);
+    }
+
+    return 0;
+}
 
 int DevSetupMsgBundling(AR6K_DEVICE *pDev, int MaxMsgsPerTransfer)
 {
diff --git a/drivers/staging/ath6kl/htc2/AR6000/ar6k.h b/drivers/staging/ath6kl/htc2/AR6000/ar6k.h
index d3b6b309dc2a..19d8e706057d 100644
--- a/drivers/staging/ath6kl/htc2/AR6000/ar6k.h
+++ b/drivers/staging/ath6kl/htc2/AR6000/ar6k.h
@@ -297,6 +297,8 @@ static INLINE int DEV_PREPARE_SCATTER_OPERATION(HIF_SCATTER_REQ *pReq)  {
         
     
 int DevSetupMsgBundling(AR6K_DEVICE *pDev, int MaxMsgsPerTransfer);
+
+int DevCleanupMsgBundling(AR6K_DEVICE *pDev);
                                   
 #define DEV_GET_MAX_MSG_PER_BUNDLE(pDev)        (pDev)->HifScatterInfo.MaxScatterEntries
 #define DEV_GET_MAX_BUNDLE_LENGTH(pDev)         (pDev)->HifScatterInfo.MaxTransferSizePerScatterReq
diff --git a/drivers/staging/ath6kl/htc2/htc.c b/drivers/staging/ath6kl/htc2/htc.c
index 684eca9bd022..e7adc45324af 100644
--- a/drivers/staging/ath6kl/htc2/htc.c
+++ b/drivers/staging/ath6kl/htc2/htc.c
@@ -486,6 +486,8 @@ void HTCStop(HTC_HANDLE HTCHandle)
         /* flush all recv buffers */
     HTCFlushRecvBuffers(target);
 
+    DevCleanupMsgBundling(&target->Device);
+
     ResetEndpointStates(target);
    
     AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("-HTCStop \n"));