linux-imx
Public
Source
committed f4dd471b5c393
93
static __poll_t media_request_poll(struct file *filp,94
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struct poll_table_struct *wait)95
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{96
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struct media_request *req = filp->private_data;97
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unsigned long flags;98
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__poll_t ret = 0;99
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if (!(poll_requested_events(wait) & EPOLLPRI))101
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return 0;102
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+
poll_wait(filp, &req->poll_wait, wait);103
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spin_lock_irqsave(&req->lock, flags);104
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if (req->state == MEDIA_REQUEST_STATE_COMPLETE) {105
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ret = EPOLLPRI;106
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goto unlock;107
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}108
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if (req->state != MEDIA_REQUEST_STATE_QUEUED) {109
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ret = EPOLLERR;110
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goto unlock;111
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}112
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-
poll_wait(filp, &req->poll_wait, wait);114
-
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unlock:116
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spin_unlock_irqrestore(&req->lock, flags);117
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return ret;118
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}119
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static long media_request_ioctl_queue(struct media_request *req)121
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{122
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struct media_device *mdev = req->mdev;123
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enum media_request_state state;124
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unsigned long flags;