diff options
Diffstat (limited to 'drivers/media/video/cx18/cx18-mailbox.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-mailbox.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/media/video/cx18/cx18-mailbox.c b/drivers/media/video/cx18/cx18-mailbox.c index 844a62de6535..e5d4f3112293 100644 --- a/drivers/media/video/cx18/cx18-mailbox.c +++ b/drivers/media/video/cx18/cx18-mailbox.c @@ -399,7 +399,12 @@ void cx18_api_epu_cmd_irq(struct cx18 *cx, int rpu) order->flags = 0; order->rpu = rpu; order_mb = &order->mb; - cx18_memcpy_fromio(cx, order_mb, mb, sizeof(struct cx18_mailbox)); + + /* mb->cmd and mb->args[0] through mb->args[2] */ + cx18_memcpy_fromio(cx, &order_mb->cmd, &mb->cmd, 4 * sizeof(u32)); + /* mb->request and mb->ack. N.B. we want to read mb->ack last */ + cx18_memcpy_fromio(cx, &order_mb->request, &mb->request, + 2 * sizeof(u32)); if (order_mb->request == order_mb->ack) { CX18_WARN("Possibly falling behind: %s self-ack'ed our incoming" |