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authorJames Morris <james.l.morris@oracle.com>2014-10-01 00:44:04 +1000
committerJames Morris <james.l.morris@oracle.com>2014-10-01 00:44:04 +1000
commit6c8ff877cdf13cd5287ed9d700cfb6cb70e2bfa1 (patch)
tree2ab49b7d19fb69cdae5b6be9e7ba44f6cf3d45ef /drivers/gpu/drm/qxl/qxl_irq.c
parent35e1efd25a9e7d5cf2884fa23441ab87353849bb (diff)
parent19583ca584d6f574384e17fe7613dfaeadcdc4a6 (diff)
Merge commit 'v3.16' into next
Diffstat (limited to 'drivers/gpu/drm/qxl/qxl_irq.c')
-rw-r--r--drivers/gpu/drm/qxl/qxl_irq.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/qxl/qxl_irq.c b/drivers/gpu/drm/qxl/qxl_irq.c
index 34d6a85e9023..0bf1e20c6e44 100644
--- a/drivers/gpu/drm/qxl/qxl_irq.c
+++ b/drivers/gpu/drm/qxl/qxl_irq.c
@@ -33,6 +33,9 @@ irqreturn_t qxl_irq_handler(int irq, void *arg)
pending = xchg(&qdev->ram_header->int_pending, 0);
+ if (!pending)
+ return IRQ_NONE;
+
atomic_inc(&qdev->irq_received);
if (pending & QXL_INTERRUPT_DISPLAY) {