[PATCH 1/2] um: vector_kern: Unlock on error in vector_net_open()

We need to unlock and restore IRQs on this error path.

Fixes: ad1f62ab2bd4 ("High Performance UML Vector Network Driver")
Signed-off-by: Dan Carpenter <[email protected]>

diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
index d1d53015d572..bb83a2d22ac2 100644
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -1156,8 +1156,10 @@ static int vector_net_open(struct net_device *dev)
 	struct vector_device *vdevice;
 
 	spin_lock_irqsave(&vp->lock, flags);
-	if (vp->opened)
+	if (vp->opened) {
+		spin_unlock_irqrestore(&vp->lock, flags);
 		return -ENXIO;
+	}
 	vp->opened = true;
 	spin_unlock_irqrestore(&vp->lock, flags);
 
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