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authorMarcel Ziswiler <marcel.ziswiler@toradex.com>2019-03-28 16:27:49 +0100
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2019-03-28 16:27:49 +0100
commitd899927728beca8357a5b4120b690cb3c1d80844 (patch)
treeccb170439cc8638d71f6120ae08a6faded46db98 /drivers/net/ethernet/realtek/8139cp.c
parent8d60367808c45e33c0a9127621f4e5fc34914f6b (diff)
parent0a8ab17689e628c84a666195bfc6ab85d11cf057 (diff)
Diffstat (limited to 'drivers/net/ethernet/realtek/8139cp.c')
-rw-r--r--drivers/net/ethernet/realtek/8139cp.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c
index 5297bf77211c..d608c2a6c01f 100644
--- a/drivers/net/ethernet/realtek/8139cp.c
+++ b/drivers/net/ethernet/realtek/8139cp.c
@@ -578,6 +578,7 @@ static irqreturn_t cp_interrupt (int irq, void *dev_instance)
struct cp_private *cp;
int handled = 0;
u16 status;
+ u16 mask;
if (unlikely(dev == NULL))
return IRQ_NONE;
@@ -585,6 +586,10 @@ static irqreturn_t cp_interrupt (int irq, void *dev_instance)
spin_lock(&cp->lock);
+ mask = cpr16(IntrMask);
+ if (!mask)
+ goto out_unlock;
+
status = cpr16(IntrStatus);
if (!status || (status == 0xFFFF))
goto out_unlock;