linux-kernel - query regarding not returning error if request

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Date:	Thu, 15 May 2014 22:15:14 +0530
From:	RAGHAVENDRA GANIGA <ravi23ganiga@...il.com>
To:	linux-kernel@...r.kernel.org, rtc-linux@...glegroups.com,
	a.zummo@...ertech.it
Subject: query regarding not returning error if request_irq fails after rtc
 registration

in ds1343 driver after the rtc is registered using devm_rtc_device_register
i am requesting irq using devm_request_threaded_irq, in case this request
fails instead of the driver bailing out it just uses dev_err to show the
error and the driver probe returns zero

my question is that the set_alarm and alarm_irq_enable is still active,
so should i use some flag in the global private variable of the driver
so that if the request irq fails, then using this flag the set_alarm
and alarm_irq_enable can return error since there is no irq handler
for the rtc interrupt 
or is there any other solution 
or let the set_alarm and alarm_irq_enable routine be as it is and will
not harm 

Thanks and Regards
Raghavendra Chandra Ganiga
Contact: +919594554858
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