[PATCH v2 6/6] clk: mediatek: mt8192: fix memory leak on module removal
Akari Tsuyukusa
akkun11.open at gmail.com
Tue Jul 7 00:48:35 PDT 2026
clk_mt8192_apmixed_probe() in clk-mt8192-apmixedsys.c does not call
platform_set_drvdata(), but clk_mt8192_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: 124294ff468f ("clk: mediatek: mt8192: Move apmixedsys clock driver to its own file")
Cc: stable at vger.kernel.org
Signed-off-by: Akari Tsuyukusa <akkun11.open at gmail.com>
---
drivers/clk/mediatek/clk-mt8192-apmixedsys.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/clk/mediatek/clk-mt8192-apmixedsys.c b/drivers/clk/mediatek/clk-mt8192-apmixedsys.c
index b0563a285bd6..e6ac40e2f12d 100644
--- a/drivers/clk/mediatek/clk-mt8192-apmixedsys.c
+++ b/drivers/clk/mediatek/clk-mt8192-apmixedsys.c
@@ -176,6 +176,8 @@ static int clk_mt8192_apmixed_probe(struct platform_device *pdev)
if (r)
goto unregister_gates;
+ platform_set_drvdata(pdev, clk_data);
+
return r;
unregister_gates:
--
2.54.0
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