[PATCH v4 01/10] mhi: Add mhi_controller_initialize helper

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This function allows to initialize a mhi_controller structure.
Today, it only zeroing the structure.

Use this function from mhi_alloc_controller so that any further
initialization can be factorized in initalize function.

Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxx>
---
 drivers/bus/mhi/core/init.c | 7 +++++++
 include/linux/mhi.h         | 6 ++++++
 2 files changed, 13 insertions(+)

diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c
index 96cde9c..4acad28 100644
--- a/drivers/bus/mhi/core/init.c
+++ b/drivers/bus/mhi/core/init.c
@@ -1021,11 +1021,18 @@ void mhi_unregister_controller(struct mhi_controller *mhi_cntrl)
 }
 EXPORT_SYMBOL_GPL(mhi_unregister_controller);
 
+void mhi_initialize_controller(struct mhi_controller *mhi_cntrl)
+{
+	memset(mhi_cntrl, 0, sizeof(*mhi_cntrl));
+}
+EXPORT_SYMBOL_GPL(mhi_initialize_controller);
+
 struct mhi_controller *mhi_alloc_controller(void)
 {
 	struct mhi_controller *mhi_cntrl;
 
 	mhi_cntrl = kzalloc(sizeof(*mhi_cntrl), GFP_KERNEL);
+	mhi_initialize_controller(mhi_cntrl);
 
 	return mhi_cntrl;
 }
diff --git a/include/linux/mhi.h b/include/linux/mhi.h
index 04cf7f3..2754742 100644
--- a/include/linux/mhi.h
+++ b/include/linux/mhi.h
@@ -537,6 +537,12 @@ struct mhi_driver {
 #define to_mhi_device(dev) container_of(dev, struct mhi_device, dev)
 
 /**
+ * mhi_initialize_controller - Initialize MHI Controller structure
+ * @mhi_cntrl: MHI controller structure to initialize
+ */
+void mhi_initialize_controller(struct mhi_controller *mhi_cntrl);
+
+/**
  * mhi_alloc_controller - Allocate the MHI Controller structure
  * Allocate the mhi_controller structure using zero initialized memory
  */
-- 
2.7.4




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