wan: cosa: drop chan->wsem on error path
The other paths all drop chan->wsem. This was found by a static
checker (smatch).
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index e2c33c0..8e25ca7 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -907,6 +907,7 @@
current->state = TASK_RUNNING;
chan->tx_status = 1;
spin_unlock_irqrestore(&cosa->lock, flags);
+ up(&chan->wsem);
return -ERESTARTSYS;
}
}