linux-kernel - [PATCH v2 net-next 2/5] net: ipa: don't report EPROBE

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Date:   Thu, 11 Feb 2021 15:19:24 -0600
From:   Alex Elder <elder@...aro.org>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     elder@...nel.org, evgreen@...omium.org, bjorn.andersson@...aro.org,
        cpratapa@...eaurora.org, subashab@...eaurora.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 net-next 2/5] net: ipa: don't report EPROBE_DEFER error

When initializing the IPA core clock and interconnects, it's
possible we'll get an EPROBE_DEFER error.  This isn't really an
error, it's just means we need to be re-probed later.

Check the return code when initializing these, and if it's
EPROBE_DEFER, skip printing the error message.

Signed-off-by: Alex Elder <elder@...aro.org>
---
 drivers/net/ipa/ipa_clock.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ipa/ipa_clock.c b/drivers/net/ipa/ipa_clock.c
index 354675a643db5..238a713f6b604 100644
--- a/drivers/net/ipa/ipa_clock.c
+++ b/drivers/net/ipa/ipa_clock.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 
 /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
- * Copyright (C) 2018-2020 Linaro Ltd.
+ * Copyright (C) 2018-2021 Linaro Ltd.
  */
 
 #include <linux/refcount.h>
@@ -68,8 +68,9 @@ static int ipa_interconnect_init_one(struct device *dev,
 	if (IS_ERR(path)) {
 		int ret = PTR_ERR(path);
 
-		dev_err(dev, "error %d getting %s interconnect\n", ret,
-			data->name);
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "error %d getting %s interconnect\n", ret,
+				data->name);
 
 		return ret;
 	}
@@ -281,7 +282,10 @@ ipa_clock_init(struct device *dev, const struct ipa_clock_data *data)
 
 	clk = clk_get(dev, "core");
 	if (IS_ERR(clk)) {
-		dev_err(dev, "error %ld getting core clock\n", PTR_ERR(clk));
+		ret = PTR_ERR(clk);
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "error %d getting core clock\n", ret);
+
 		return ERR_CAST(clk);
 	}
 
-- 
2.20.1