linux-kernel - [PATCH v2] regulator: core: do not report EPROBE

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Date:   Wed, 17 Apr 2019 21:24:43 +0200
From:   Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@...aro.org>
To:     jorge.ramirez-ortiz@...aro.org, lgirdwood@...il.com,
        broonie@...nel.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        khasim.mohammed@...aro.org
Subject: [PATCH v2] regulator: core: do not report EPROBE_DEFER as error but as debug

Temporary failures to get a regulator (EPROBE_DEFER) should be logged
as debug information instead of errors.

Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@...aro.org>
---
 drivers/regulator/core.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 186a37675b50..a2725269a94a 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -4342,8 +4342,6 @@ int regulator_bulk_get(struct device *dev, int num_consumers,
 						      consumers[i].supply);
 		if (IS_ERR(consumers[i].consumer)) {
 			ret = PTR_ERR(consumers[i].consumer);
-			dev_err(dev, "Failed to get supply '%s': %d\n",
-				consumers[i].supply, ret);
 			consumers[i].consumer = NULL;
 			goto err;
 		}
@@ -4352,6 +4350,13 @@ int regulator_bulk_get(struct device *dev, int num_consumers,
 	return 0;
 
 err:
+	if (ret != -EPROBE_DEFER)
+		dev_err(dev, "Failed to get supply '%s': %d\n",
+			consumers[i].supply, ret);
+	else
+		dev_dbg(dev, "Failed to get supply '%s', deferring\n",
+			consumers[i].supply);
+
 	while (--i >= 0)
 		regulator_put(consumers[i].consumer);
 
-- 
2.21.0