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Subject[char-misc-next 1/3] mei: wake also writers on reset
Date
wake writers otherwise might have processes waiting
endlessly on wait_tx during reset

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
drivers/misc/mei/client.c | 10 +++++++---
drivers/misc/mei/client.h | 2 +-
drivers/misc/mei/init.c | 2 +-
3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 21d3f5a..af1e602 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -892,18 +892,22 @@ void mei_cl_all_disconnect(struct mei_device *dev)


/**
- * mei_cl_all_read_wakeup - wake up all readings so they can be interrupted
+ * mei_cl_all_wakeup - wake up all readers and writers they can be interrupted
*
* @dev - mei device
*/
-void mei_cl_all_read_wakeup(struct mei_device *dev)
+void mei_cl_all_wakeup(struct mei_device *dev)
{
struct mei_cl *cl, *next;
list_for_each_entry_safe(cl, next, &dev->file_list, link) {
if (waitqueue_active(&cl->rx_wait)) {
- dev_dbg(&dev->pdev->dev, "Waking up client!\n");
+ dev_dbg(&dev->pdev->dev, "Waking up reading client!\n");
wake_up_interruptible(&cl->rx_wait);
}
+ if (waitqueue_active(&cl->tx_wait)) {
+ dev_dbg(&dev->pdev->dev, "Waking up writing client!\n");
+ wake_up_interruptible(&cl->tx_wait);
+ }
}
}

diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h
index 26b157d..9bae4c7 100644
--- a/drivers/misc/mei/client.h
+++ b/drivers/misc/mei/client.h
@@ -99,7 +99,7 @@ void mei_host_client_init(struct work_struct *work);


void mei_cl_all_disconnect(struct mei_device *dev);
-void mei_cl_all_read_wakeup(struct mei_device *dev);
+void mei_cl_all_wakeup(struct mei_device *dev);
void mei_cl_all_write_clear(struct mei_device *dev);

#endif /* _MEI_CLIENT_H_ */
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index e6f16f8..4bb7f3c 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -197,7 +197,7 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
mei_hbm_start_req(dev);

/* wake up all readings so they can be interrupted */
- mei_cl_all_read_wakeup(dev);
+ mei_cl_all_wakeup(dev);

/* remove all waiting requests */
mei_cl_all_write_clear(dev);
--
1.8.1.2


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