Fix potential spinlock recursion issue.

git-svn-id: http://svn.digium.com/svn/zaptel/branches/1.4@2359 5390a7c7-147a-4af0-8ec9-7488f05a26cb

1 files changed, 17 insertions, 12 deletions

diff --git a/zaptel-base.c b/zaptel-base.c
index fb7b932..89ccc4e 100644
--- a/zaptel-base.c
+++ b/zaptel-base.c
@@ -6267,6 +6267,22 @@ static inline void __zt_putbuf_chunk(struct zt_chan *ss, unsigned char *rxb)
 	__putbuf_chunk(ss, rxb, ZT_CHUNKSIZE);
 }
 
+void __zt_hdlc_abort(struct zt_chan *ss, int event)
+{
+	if (ss->inreadbuf >= 0)
+		ss->readidx[ss->inreadbuf] = 0;
+	if ((ss->flags & ZT_FLAG_OPEN) && !ss->span->alarms)
+		__qevent(ss->master, event);
+}
+
+extern void zt_hdlc_abort(struct zt_chan *ss, int event)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&ss->lock, flags);
+	__zt_hdlc_abort(ss, event);
+	spin_unlock_irqrestore(&ss->lock, flags);
+}
+
 extern void zt_hdlc_putbuf(struct zt_chan *ss, unsigned char *rxb, int bytes)
 {
 	unsigned long flags;
@@ -6296,23 +6312,12 @@ extern void zt_hdlc_putbuf(struct zt_chan *ss, unsigned char *rxb, int bytes)
 #ifdef CONFIG_ZAPATA_DEBUG
 		printk("HDLC frame isn't fit into buffer space\n");
 #endif
-		zt_hdlc_abort(ss, ZT_EVENT_OVERRUN);
+		__zt_hdlc_abort(ss, ZT_EVENT_OVERRUN);
 	}
 	res = left;
 	spin_unlock_irqrestore(&ss->lock, flags);
 }
 
-extern void zt_hdlc_abort(struct zt_chan *ss, int event)
-{
-	unsigned long flags;
-	spin_lock_irqsave(&ss->lock, flags);
-	if (ss->inreadbuf >= 0)
-		ss->readidx[ss->inreadbuf] = 0;
-	if ((ss->flags & ZT_FLAG_OPEN) && !ss->span->alarms)
-		__qevent(ss->master, event);
-	spin_unlock_irqrestore(&ss->lock, flags);
-}
-
 extern void zt_hdlc_finish(struct zt_chan *ss)
 {
 	int oldreadbuf;