tree 5c9a4ec9c571352174cbe4fd8d7eb125f53e0c30
parent 3c29e03d9121e07714fb9e5303d9b026800ffd5a
author Josh Triplett <josht@us.ibm.com> 1159953431 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1159973730 -0700

[PATCH] rcu: Avoid kthread_stop on invalid pointer if rcutorture reader startup fails

rcu_torture_init kmallocs the array of reader threads, then creates each
one with kthread_run, cleaning up with rcu_torture_cleanup if this fails.
rcu_torture_cleanup calls kthread_stop on any non-NULL pointer in the
array; however, any readers after the one that failed to start up will have
invalid pointers, not null pointers.  Avoid this by using kzalloc instead.

Signed-off-by: Josh Triplett <josh@freedesktop.org>
Acked-by: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>