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| author | Andrew Morton <akpm@linux-foundation.org> | 2012-12-20 15:05:34 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-11 09:19:04 -0800 |
| commit | 287376ad9f4cf330c786ac84d9f6a416d9ac0d09 (patch) | |
| tree | 2275fd3b32f696f16e9a43e6b7259a6806f08f46 | |
| parent | 423fccba308720afd02ec192c9ca59a167ca3717 (diff) | |
| download | lwn-287376ad9f4cf330c786ac84d9f6a416d9ac0d09.tar.gz lwn-287376ad9f4cf330c786ac84d9f6a416d9ac0d09.zip | |
revert "rtc: recycle id when unloading a rtc driver"
commit 5abe257af8b95857b95fa0ba694530b446ae32d8 upstream.
Revert commit 2830a6d20139df2198d63235df7957712adb28e5.
We already perform the ida_simple_remove() in rtc_device_release(),
which is an appropriate place. Commit 2830a6d20 ("rtc: recycle id when
unloading a rtc driver") caused the kernel to emit
ida_remove called for id=0 which is not allocated.
warnings when rtc_device_release() tries to release an alread-released
ID.
Let's restore things to their previous state and then work out why
Vincent's kernel wasn't calling rtc_device_release() - presumably a bug
in a specific sub-driver.
Reported-by: Lothar Waßmann <LW@KARO-electronics.de>
Acked-by: Alexander Holler <holler@ahsoftware.de>
Cc: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/rtc/class.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index f8a0aab218cb..5143629dedbd 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -244,7 +244,6 @@ void rtc_device_unregister(struct rtc_device *rtc) rtc_proc_del_device(rtc); device_unregister(&rtc->dev); rtc->ops = NULL; - ida_simple_remove(&rtc_ida, rtc->id); mutex_unlock(&rtc->ops_lock); put_device(&rtc->dev); } |