[PATCH v4 11/37] PM / devfreq: tegra30: Silence deferred probe error

Dmitry Osipenko
2020-06-09T13:18:14Z

Tegra EMC driver was turned into a regular kernel driver, it also could
be compiled as a loadable kernel module now. Hence EMC clock isn't
guaranteed to be available and clk_get("emc") may return -EPROBE_DEFER and
there is no good reason to spam KMSG with a error about missing EMC clock
in this case, so let's silence the deferred probe error.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/devfreq/tegra30-devfreq.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c
index e94a27804c20..423dd35c95b3 100644
--- a/drivers/devfreq/tegra30-devfreq.c
+++ b/drivers/devfreq/tegra30-devfreq.c
@@ -801,9 +801,12 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
}

tegra->emc_clock = devm_clk_get(&pdev->dev, "emc");
- if (IS_ERR(tegra->emc_clock)) {
- dev_err(&pdev->dev, "Failed to get emc clock\n");
- return PTR_ERR(tegra->emc_clock);
+ err = PTR_ERR_OR_ZERO(tegra->emc_clock);
+ if (err) {
+ if (err != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Failed to get emc clock: %d\n",
+ err);
+ return err;
}

err = platform_get_irq(pdev, 0);
--
2.26.0