2022-01-07 18:24:58

by José Expósito

Subject: [PATCH RESEND v2] clk: mediatek: Fix memory leaks on probe

Handle the error branches to free memory where required.

Addresses-Coverity-ID: 1491825 ("Resource leak")
Signed-off-by: José Expósito <[email protected]>
Reviewed-by: Chen-Yu Tsai <[email protected]>

---

v2: Add Reviewed-by tag
---
drivers/clk/mediatek/clk-mt8192.c | 36 +++++++++++++++++++++++++------
1 file changed, 30 insertions(+), 6 deletions(-)

diff --git a/drivers/clk/mediatek/clk-mt8192.c b/drivers/clk/mediatek/clk-mt8192.c
index cbc7c6dbe0f4..79ddb3cc0b98 100644
--- a/drivers/clk/mediatek/clk-mt8192.c
+++ b/drivers/clk/mediatek/clk-mt8192.c
@@ -1236,9 +1236,17 @@ static int clk_mt8192_infra_probe(struct platform_device *pdev)

r = mtk_clk_register_gates(node, infra_clks, ARRAY_SIZE(infra_clks), clk_data);
if (r)
- return r;
+ goto free_clk_data;
+
+ r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+ if (r)
+ goto free_clk_data;
+
+ return r;

- return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+free_clk_data:
+ mtk_free_clk_data(clk_data);
+ return r;
}

static int clk_mt8192_peri_probe(struct platform_device *pdev)
@@ -1253,9 +1261,17 @@ static int clk_mt8192_peri_probe(struct platform_device *pdev)

r = mtk_clk_register_gates(node, peri_clks, ARRAY_SIZE(peri_clks), clk_data);
if (r)
- return r;
+ goto free_clk_data;
+
+ r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+ if (r)
+ goto free_clk_data;

- return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+ return r;
+
+free_clk_data:
+ mtk_free_clk_data(clk_data);
+ return r;
}

static int clk_mt8192_apmixed_probe(struct platform_device *pdev)
@@ -1271,9 +1287,17 @@ static int clk_mt8192_apmixed_probe(struct platform_device *pdev)
mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data);
r = mtk_clk_register_gates(node, apmixed_clks, ARRAY_SIZE(apmixed_clks), clk_data);
if (r)
- return r;
+ goto free_clk_data;

- return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+ r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+ if (r)
+ goto free_clk_data;
+
+ return r;
+
+free_clk_data:
+ mtk_free_clk_data(clk_data);
+ return r;
}

static const struct of_device_id of_match_clk_mt8192[] = {
--
2.25.1

2022-01-14 01:45:36

by Stephen Boyd

Subject: Re: [PATCH RESEND v2] clk: mediatek: Fix memory leaks on probe

Please Cc the clk mailing list on clk driver patches.

Quoting José Expósito (2022-01-07 10:24:51)
> Handle the error branches to free memory where required.
>
> Addresses-Coverity-ID: 1491825 ("Resource leak")
> Signed-off-by: José Expósito <[email protected]>
> Reviewed-by: Chen-Yu Tsai <[email protected]>
>