hd44780_probe() allocates a memory chunk for hd with kzalloc() and
makes "lcd->drvdata->hd44780" point to it. When we call hd44780_remove(),
we should release all relevant memory and resource, but "lcd->drvdata
->hd44780" is not released, which will lead to a memory leak.
We should release the "lcd->drvdata->hd44780" in hd44780_remove() to fix
the memory leak bug.
Signed-off-by: Jianglei Nie <[email protected]>
---
drivers/auxdisplay/hd44780.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/auxdisplay/hd44780.c b/drivers/auxdisplay/hd44780.c
index 8b2a0eb3f32a..8940a93d2d4d 100644
--- a/drivers/auxdisplay/hd44780.c
+++ b/drivers/auxdisplay/hd44780.c
@@ -324,6 +324,7 @@ static int hd44780_remove(struct platform_device *pdev)
struct charlcd *lcd = platform_get_drvdata(pdev);
charlcd_unregister(lcd);
+ kfree(lcd->drvdata->hd44780);
kfree(lcd->drvdata);
kfree(lcd);
--
2.25.1