[PATCH v2 1/6] clk: mediatek: mt2712: fix memory leak on module removal

[Akari Tsuyukusa]

clk_mt2712_apmixed_probe() in clk-mt2712-apmixedsys.c does not call
platform_set_drvdata(), but clk_mt2712_apmixed_remove() callback calls
platform_get_drvdata().
This results in platform_get_drvdata() returning NULL, which leads to
calling kfree(NULL) in mtk_free_clk_data(NULL).
This leaves clk_data unreleased, causing a memory leak.

Fix this by calling platform_set_drvdata() during probe.

Fixes: c6368ce86435 ("clk: mediatek: mt2712-apmixedsys: Add .remove() callback for module build")
Cc: stable at vger.kernel.org
Signed-off-by: Akari Tsuyukusa <akkun11.open at gmail.com>
---
 drivers/clk/mediatek/clk-mt2712-apmixedsys.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/clk/mediatek/clk-mt2712-apmixedsys.c b/drivers/clk/mediatek/clk-mt2712-apmixedsys.c
index 54b18e9f83f8..087cf574bcdc 100644
--- a/drivers/clk/mediatek/clk-mt2712-apmixedsys.c
+++ b/drivers/clk/mediatek/clk-mt2712-apmixedsys.c
@@ -129,6 +129,8 @@ static int clk_mt2712_apmixed_probe(struct platform_device *pdev)
 		goto unregister_plls;
 	}
 
+	platform_set_drvdata(pdev, clk_data);
+
 	return 0;
 
 unregister_plls:
-- 
2.54.0