linux-kernel - [PATCH v2 -next 12/14] of: earlycon: Log more helpful message if earlycon not found

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Message-Id: <1425669930-22137-13-git-send-email-peter@hurleysoftware.com>
Date:	Fri,  6 Mar 2015 14:25:28 -0500
From:	Peter Hurley <peter@...leysoftware.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Rob Herring <robh+dt@...nel.org>,
	Grant Likely <grant.likely@...aro.org>
Cc:	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
	Peter Hurley <peter@...leysoftware.com>
Subject: [PATCH v2 -next 12/14] of: earlycon: Log more helpful message if earlycon not found

Earlycon may fail to initialize for a variety of reasons, most of
which log the default early param message. If the earlycon is
not found, log the OF path which was not found (and suppress the
default early param message).

Signed-off-by: Peter Hurley <peter@...leysoftware.com>
---
 drivers/of/fdt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 0850517..7b8eae3 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -800,7 +800,8 @@ static int __init early_init_dt_scan_chosen_serial(void)
 		of_setup_earlycon(match, offset, options);
 		return 0;
 	}
-	return -ENODEV;
+	pr_warn("earlycon: %s no match\n", p);
+	return 0;
 }
 
 static int __init setup_of_earlycon(char *buf)
-- 
2.3.1

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