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authorJeff Garzik <jeff@garzik.org>2006-08-29 17:55:59 -0400
committerJeff Garzik <jeff@garzik.org>2006-08-29 17:55:59 -0400
commitb01e86fee6c821e4e003fd4e9f65453ac478a58e (patch)
tree21695e10cbe7001d2ccc8c87cee5e7a7865b1025 /block/elevator.c
parente889173c2c67dc288e9b050ab066cfae151b047e (diff)
parent60d4684068ff1eec78f55b5888d0bd2d4cca1520 (diff)
downloadop-kernel-dev-b01e86fee6c821e4e003fd4e9f65453ac478a58e.zip
op-kernel-dev-b01e86fee6c821e4e003fd4e9f65453ac478a58e.tar.gz
Merge /spare/repo/linux-2.6 into upstream
Diffstat (limited to 'block/elevator.c')
-rw-r--r--block/elevator.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/elevator.c b/block/elevator.c
index bc7baee..9b72dc7 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -765,7 +765,8 @@ void elv_unregister(struct elevator_type *e)
read_lock(&tasklist_lock);
do_each_thread(g, p) {
task_lock(p);
- e->ops.trim(p->io_context);
+ if (p->io_context)
+ e->ops.trim(p->io_context);
task_unlock(p);
} while_each_thread(g, p);
read_unlock(&tasklist_lock);
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