[PATCH 6.18 188/752] ASoC: sunxi: sun50i-dmic: Add missing check for devm_regmap_init_mmio

Sasha Levin
2026-02-28T17:50:48Z

From: Chen Ni <nichen@iscas.ac.cn>

[ Upstream commit 74823db9ba2e13f3ec007b354759b3d8125e462c ]

Add check for the return value of devm_regmap_init_mmio() and return the
error if it fails in order to catch the error.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://patch.msgid.link/20260127033250.2044608-1-nichen@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/sunxi/sun50i-dmic.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/sound/soc/sunxi/sun50i-dmic.c b/sound/soc/sunxi/sun50i-dmic.c
index bab1e29c99887..eddfebe166169 100644
--- a/sound/soc/sunxi/sun50i-dmic.c
+++ b/sound/soc/sunxi/sun50i-dmic.c
@@ -358,6 +358,9 @@ static int sun50i_dmic_probe(struct platform_device *pdev)

host->regmap = devm_regmap_init_mmio(&pdev->dev, base,
&sun50i_dmic_regmap_config);
+ if (IS_ERR(host->regmap))
+ return dev_err_probe(&pdev->dev, PTR_ERR(host->regmap),
+ "failed to initialise regmap\n");

/* Clocks */
host->bus_clk = devm_clk_get(&pdev->dev, "bus");
--
2.51.0