[PATCH v1 2/4] auxdisplay: charlcd: Introduce charlcd_free() helper

[Andy Shevchenko]

The charlcd_free() is a counterpart to charlcd_alloc()
and should be called symmetrically on tear down.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
 drivers/auxdisplay/charlcd.c | 6 ++++++
 include/misc/charlcd.h       | 1 +
 2 files changed, 7 insertions(+)

diff --git a/drivers/auxdisplay/charlcd.c b/drivers/auxdisplay/charlcd.c
index 60e0b772673f..882be08ddad5 100644
--- a/drivers/auxdisplay/charlcd.c
+++ b/drivers/auxdisplay/charlcd.c
@@ -818,6 +818,12 @@ struct charlcd *charlcd_alloc(unsigned int drvdata_size)
 }
 EXPORT_SYMBOL_GPL(charlcd_alloc);
 
+void charlcd_free(struct charlcd *lcd)
+{
+	kfree(lcd);
+}
+EXPORT_SYMBOL_GPL(charlcd_free);
+
 static int panel_notify_sys(struct notifier_block *this, unsigned long code,
 			    void *unused)
 {
diff --git a/include/misc/charlcd.h b/include/misc/charlcd.h
index 23f61850f363..1832402324ce 100644
--- a/include/misc/charlcd.h
+++ b/include/misc/charlcd.h
@@ -35,6 +35,7 @@ struct charlcd_ops {
 };
 
 struct charlcd *charlcd_alloc(unsigned int drvdata_size);
+void charlcd_free(struct charlcd *lcd);
 
 int charlcd_register(struct charlcd *lcd);
 int charlcd_unregister(struct charlcd *lcd);
-- 
2.20.1