mei: fix reading large reposnes
While writting to device is limitted to max_msg_length advertized
in client properites the read can be much longer delivered consequiting chunks.
We use krealloc to enlarge the buffer when needed.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 834ceeb..1e935ea 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -286,7 +286,7 @@
mutex_lock(&dev->device_lock);
if (!cl->read_cb) {
- err = mei_cl_read_start(cl);
+ err = mei_cl_read_start(cl, length);
if (err < 0) {
mutex_unlock(&dev->device_lock);
return err;
@@ -378,7 +378,7 @@
device->events = 0;
/* Prepare for the next read */
- mei_cl_read_start(device->cl);
+ mei_cl_read_start(device->cl, 0);
}
int mei_cl_register_event_cb(struct mei_cl_device *device,
@@ -392,7 +392,7 @@
device->event_context = context;
INIT_WORK(&device->event_work, mei_bus_event_work);
- mei_cl_read_start(device->cl);
+ mei_cl_read_start(device->cl, 0);
return 0;
}
@@ -436,7 +436,7 @@
mutex_unlock(&dev->device_lock);
if (device->event_cb && !cl->read_cb)
- mei_cl_read_start(device->cl);
+ mei_cl_read_start(device->cl, 0);
if (!device->ops || !device->ops->enable)
return 0;