staging: r8188eu: rtw_free_xmitframe_queue needs no spinlock
authorMartin Kaiser <martin@kaiser.cx>
Mon, 30 Jan 2023 19:52:55 +0000 (20:52 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 31 Jan 2023 10:16:56 +0000 (11:16 +0100)
There's no need for a spinlock in rtw_free_xmitframe_queue.

This function is called only from rtw_free_stainfo. rtw_free_stainfo holds
pxmitpriv->lock during all rtw_free_xmitframe_queue calls.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20230130195303.138941-2-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/r8188eu/core/rtw_xmit.c

index f50e10f..4e49f1d 100644 (file)
@@ -1330,8 +1330,6 @@ void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pfram
        struct list_head *plist, *phead;
        struct  xmit_frame      *pxmitframe;
 
-       spin_lock_bh(&pframequeue->lock);
-
        phead = get_list_head(pframequeue);
        plist = phead->next;
 
@@ -1342,7 +1340,6 @@ void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pfram
 
                rtw_free_xmitframe(pxmitpriv, pxmitframe);
        }
-       spin_unlock_bh(&pframequeue->lock);
 }
 
 struct xmit_frame *rtw_dequeue_xframe(struct xmit_priv *pxmitpriv, struct hw_xmit *phwxmit_i)