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path: root/drivers/media/pci/tw5864/tw5864-core.c
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Diffstat (limited to 'drivers/media/pci/tw5864/tw5864-core.c')
-rw-r--r--drivers/media/pci/tw5864/tw5864-core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/pci/tw5864/tw5864-core.c b/drivers/media/pci/tw5864/tw5864-core.c
index e3d884e963c0..440cd7bb8d04 100644
--- a/drivers/media/pci/tw5864/tw5864-core.c
+++ b/drivers/media/pci/tw5864/tw5864-core.c
@@ -157,10 +157,12 @@ static void tw5864_h264_isr(struct tw5864_dev *dev)
cur_frame = next_frame;
+ spin_lock_irqsave(&input->slock, flags);
input->frame_seqno++;
input->frame_gop_seqno++;
if (input->frame_gop_seqno >= input->gop)
input->frame_gop_seqno = 0;
+ spin_unlock_irqrestore(&input->slock, flags);
} else {
dev_err(&dev->pci->dev,
"Skipped frame on input %d because all buffers busy\n",