[PATCH 5.4 145/320] ASoC: mediatek: Check for error clk pointer

Greg Kroah-Hartman
2022-01-24T19:39:00Z

From: Jiasheng Jiang <jiasheng@iscas.ac.cn>

[ Upstream commit 9de2b9286a6dd16966959b3cb34fc2ddfd39213e ]

Yes, you are right and now the return code depending on the
init_clks().

Fixes: 6078c651947a ("soc: mediatek: Refine scpsys to support multiple platform")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20211222015157.1025853-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/soc/mediatek/mtk-scpsys.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c
index 75f25f08245fd..71afa2a99b17f 100644
--- a/drivers/soc/mediatek/mtk-scpsys.c
+++ b/drivers/soc/mediatek/mtk-scpsys.c
@@ -333,12 +333,17 @@ out:
return ret;
}

-static void init_clks(struct platform_device *pdev, struct clk **clk)
+static int init_clks(struct platform_device *pdev, struct clk **clk)
{
int i;

- for (i = CLK_NONE + 1; i < CLK_MAX; i++)
+ for (i = CLK_NONE + 1; i < CLK_MAX; i++) {
clk[i] = devm_clk_get(&pdev->dev, clk_names[i]);
+ if (IS_ERR(clk[i]))
+ return PTR_ERR(clk[i]);
+ }
+
+ return 0;
}

static struct scp *init_scp(struct platform_device *pdev,
@@ -348,7 +353,7 @@ static struct scp *init_scp(struct platform_device *pdev,
{
struct genpd_onecell_data *pd_data;
struct resource *res;
- int i, j;
+ int i, j, ret;
struct scp *scp;
struct clk *clk[CLK_MAX];

@@ -403,7 +408,9 @@ static struct scp *init_scp(struct platform_device *pdev,

pd_data->num_domains = num;

- init_clks(pdev, clk);
+ ret = init_clks(pdev, clk);
+ if (ret)
+ return ERR_PTR(ret);

for (i = 0; i < num; i++) {
struct scp_domain *scpd = &scp->domains[i];
--
2.34.1