[PATCH] rtc: hctosys: do not treat lack of RTC device as error

From: Floris Bos
Date: Sat Feb 21 2015 - 10:01:44 EST

When using device trees on the ARM platform, it is not certain
at compile time whether or not the system will have a RTC.

If one enables CONFIG_HCTOSYS just in case the system booted has
a RTC, and it turns out not to be, this will result in a big fat
"unable to open rtc device" error being printed to console, even
when "quiet" is set in the kernel cmdline.

Fix this by outputting the message with loglevel info instead.

Signed-off-by: Floris Bos <bos@xxxxxxxxxxxxxxxxxx>
drivers/rtc/hctosys.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c
index 6c719f2..fb4251d 100644
--- a/drivers/rtc/hctosys.c
+++ b/drivers/rtc/hctosys.c
@@ -32,7 +32,7 @@ static int __init rtc_hctosys(void)
struct rtc_device *rtc = rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);

if (rtc == NULL) {
- pr_err("%s: unable to open rtc device (%s)\n",
+ pr_info("%s: unable to open rtc device (%s)\n",
goto err_open;

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