tree 402ca61d265c59d35282b0786363dfbe32659564
parent 0478e62e8a04154b7bdc0dfd33ffbcabc5446e9c
author David Brownell <david-b@pacbell.net> 1172722360 -0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1172789617 -0800

[PATCH] rtc_cmos oops fix

Fix an oops on the rtc_device_unregister() path by waiting until the last
moment before nulling the rtc->ops vector.  Fix some potential oopses by
having the rtc_class_open()/rtc_class_close() interface increase the RTC's
reference count while an RTC handle is available outside the RTC framework.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>