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.
Acked-by: Chanwoo Choi cw00.choi@samsung.com 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);