diff mbox series

[net,13/15] can: m_can: m_can_class_free_dev(): introduce new function

Message ID 20201115174131.2089251-14-mkl@pengutronix.de
State New
Headers show
Series [net,01/15] can: af_can: prevent potential access of uninitialized member in can_rcv() | expand

Commit Message

Marc Kleine-Budde Nov. 15, 2020, 5:41 p.m. UTC 
From: Dan Murphy <dmurphy@ti.com>

This patch creates a common function that peripherials can call to free the
netdev device when failures occur.

Fixes: f524f829b75a ("can: m_can: Create a m_can platform framework")
Reported-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Link: http://lore.kernel.org/r/20200227183829.21854-2-dmurphy@ti.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/m_can/m_can.c | 6 ++++++
 drivers/net/can/m_can/m_can.h | 1 +
 2 files changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index 63887e23d89c..f2c87b76e569 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -1812,6 +1812,12 @@  struct m_can_classdev *m_can_class_allocate_dev(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(m_can_class_allocate_dev);
 
+void m_can_class_free_dev(struct net_device *net)
+{
+	free_candev(net);
+}
+EXPORT_SYMBOL_GPL(m_can_class_free_dev);
+
 int m_can_class_register(struct m_can_classdev *m_can_dev)
 {
 	int ret;
diff --git a/drivers/net/can/m_can/m_can.h b/drivers/net/can/m_can/m_can.h
index 49f42b50627a..b2699a7c9997 100644
--- a/drivers/net/can/m_can/m_can.h
+++ b/drivers/net/can/m_can/m_can.h
@@ -99,6 +99,7 @@  struct m_can_classdev {
 };
 
 struct m_can_classdev *m_can_class_allocate_dev(struct device *dev);
+void m_can_class_free_dev(struct net_device *net);
 int m_can_class_register(struct m_can_classdev *cdev);
 void m_can_class_unregister(struct m_can_classdev *cdev);
 int m_can_class_get_clocks(struct m_can_classdev *cdev);