rcu: Fix wrong check in list_splice_init_rcu()
authorJan H. Schönherr <schnhrr@cs.tu-berlin.de>
Tue, 19 Jul 2011 19:10:26 +0000 (21:10 +0200)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Wed, 20 Jul 2011 21:10:20 +0000 (14:10 -0700)
commit7f70893173b056df691b2ee7546bb44fd9abae6a
tree5ac9a61694116b0743b3f407ee935bb07e9271e2
parentcefcb602012482003ca2ccc44fcba628d006e4bd
rcu: Fix wrong check in list_splice_init_rcu()

If the list to be spliced is empty, then list_splice_init_rcu() has
nothing to do.  Unfortunately, list_splice_init_rcu() does not check
the list to be spliced; it instead checks the list to be spliced into.
This results in memory leaks given current usage.  This commit
therefore fixes the empty-list check.

Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
include/linux/rculist.h