[PATCH v6 4/9] thermal: exynos: handle devm_regulator_get_optional return value correctly

Mateusz Majewski
2023-12-01T09:56:47Z

Currently, if regulator is required in the SoC, but
devm_regulator_get_optional fails for whatever reason, the execution
will proceed without propagating the error. Meanwhile there is no reason
to output the error in case of -ENODEV.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Mateusz Majewski <m.majewski2@samsung.com>
---
v3 -> v4: Moved info about not outputting error to the correct commit
message.

drivers/thermal/samsung/exynos_tmu.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index c144592d4584..8bcad8a70dc5 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -1002,9 +1002,17 @@ static int exynos_tmu_probe(struct platform_device *pdev)
return ret;
}
} else {
- if (PTR_ERR(data->regulator) == -EPROBE_DEFER)
+ ret = PTR_ERR(data->regulator);
+ switch (ret) {
+ case -ENODEV:
+ break;
+ case -EPROBE_DEFER:
return -EPROBE_DEFER;
- dev_info(&pdev->dev, "Regulator node (vtmu) not found\n");
+ default:
+ dev_err(&pdev->dev, "Failed to get regulator: %d\n",
+ ret);
+ return ret;
+ }
}

ret = exynos_map_dt_data(pdev);
--
2.42.0