mei: wake also writers on reset
wake writers otherwise might have processes waiting endlessly on wait_tx during reset Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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cc33c537c1
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5290801c23
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@ -892,18 +892,22 @@ void mei_cl_all_disconnect(struct mei_device *dev)
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/**
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/**
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* mei_cl_all_read_wakeup - wake up all readings so they can be interrupted
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* mei_cl_all_wakeup - wake up all readers and writers they can be interrupted
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*
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*
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* @dev - mei device
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* @dev - mei device
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*/
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*/
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void mei_cl_all_read_wakeup(struct mei_device *dev)
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void mei_cl_all_wakeup(struct mei_device *dev)
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{
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{
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struct mei_cl *cl, *next;
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struct mei_cl *cl, *next;
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list_for_each_entry_safe(cl, next, &dev->file_list, link) {
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list_for_each_entry_safe(cl, next, &dev->file_list, link) {
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if (waitqueue_active(&cl->rx_wait)) {
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if (waitqueue_active(&cl->rx_wait)) {
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dev_dbg(&dev->pdev->dev, "Waking up client!\n");
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dev_dbg(&dev->pdev->dev, "Waking up reading client!\n");
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wake_up_interruptible(&cl->rx_wait);
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wake_up_interruptible(&cl->rx_wait);
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}
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}
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if (waitqueue_active(&cl->tx_wait)) {
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dev_dbg(&dev->pdev->dev, "Waking up writing client!\n");
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wake_up_interruptible(&cl->tx_wait);
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}
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}
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}
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}
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}
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@ -99,7 +99,7 @@ void mei_host_client_init(struct work_struct *work);
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void mei_cl_all_disconnect(struct mei_device *dev);
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void mei_cl_all_disconnect(struct mei_device *dev);
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void mei_cl_all_read_wakeup(struct mei_device *dev);
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void mei_cl_all_wakeup(struct mei_device *dev);
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void mei_cl_all_write_clear(struct mei_device *dev);
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void mei_cl_all_write_clear(struct mei_device *dev);
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#endif /* _MEI_CLIENT_H_ */
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#endif /* _MEI_CLIENT_H_ */
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@ -196,7 +196,7 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
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mei_hbm_start_req(dev);
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mei_hbm_start_req(dev);
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/* wake up all readings so they can be interrupted */
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/* wake up all readings so they can be interrupted */
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mei_cl_all_read_wakeup(dev);
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mei_cl_all_wakeup(dev);
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/* remove all waiting requests */
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/* remove all waiting requests */
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mei_cl_all_write_clear(dev);
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mei_cl_all_write_clear(dev);
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