net: mscc: ocelot: avoid incorrect consuming in skbs list

yangbolu1991 · davem330 · commit fc62c0948986 · 2019-11-27T10:53:37.000-08:00
Break the matching loop when find the matching skb for TX timestamp.
This is to avoid consuming more skbs incorrectly. The timestamp ID
is from 0 to 3 while the FIFO could support 128 timestamps at most.

Signed-off-by: Yangbo Lu &lt;yangbo.lu@nxp.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
@@ -736,6 +736,7 @@ void ocelot_get_txtstamp(struct ocelot *ocelot)
 
 			list_del(pos);
 			kfree(entry);
+			break;
 		}
 
 		/* Next ts */

Original file line number	Diff line number	Diff line change
`@@ -736,6 +736,7 @@ void ocelot_get_txtstamp(struct ocelot *ocelot)`
`736`	`736`
`737`	`737`	`list_del(pos);`
`738`	`738`	`kfree(entry);`
	`739`	`+ break;`
`739`	`740`	`}`
`740`	`741`
`741`	`742`	`/* Next ts */`