[PATCH] i2c: Remove unneeded xxx_set_drvdata(..., NULL) calls

Peter Korsgaard jacmet at sunsite.dk
Mon Feb 18 02:12:31 EST 2013


>>>>> "Doug" == Doug Anderson <dianders at chromium.org> writes:

 Doug> There is simply no reason to be manually setting the private driver
 Doug> data to NULL in the remove/fail to probe cases.  This is just extra
 Doug> cruft code that can be removed.

 Doug> A few notes:
 Doug> * Nothing relies on drvdata being set to NULL.
 Doug> * The __device_release_driver() function eventually calls
 Doug>   dev_set_drvdata(dev, NULL) anyway, so there's no need to do it
 Doug>   twice.
 Doug> * I verified that there were no cases where xxx_get_drvdata() was
 Doug>   being called in these drivers and checking for / relying on the NULL
 Doug>   return value.

 Doug> This could be cleaned up kernel-wide but for now just take the baby
 Doug> step and remove from the i2c subsystem.

 Doug> Reported-by: Wolfram Sang <wsa at the-dreams.de>
 Doug> Reported-by: Stephen Warren <swarren at wwwdotorg.org>
 Doug> Signed-off-by: Doug Anderson <dianders at chromium.org>

For i2c-ocores.c + i2c-mux-gpio.c:

Acked-by: Peter Korsgaard <jacmet at sunsite.dk>

-- 
Bye, Peter Korsgaard


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