[PATCH v5 11/36] PM / devfreq: tegra30: Silence deferred probe error

[Dmitry Osipenko]

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 at samsung.com>
Signed-off-by: Dmitry Osipenko <digetx at 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);
-- 
2.27.0