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-rw-r--r--mm/backing-dev.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 67a33a5a1a93..f13e067e1467 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -227,6 +227,9 @@ static struct device_attribute bdi_dev_attrs[] = {
static __init int bdi_class_init(void)
{
bdi_class = class_create(THIS_MODULE, "bdi");
+ if (IS_ERR(bdi_class))
+ return PTR_ERR(bdi_class);
+
bdi_class->dev_attrs = bdi_dev_attrs;
bdi_debug_init();
return 0;
@@ -609,7 +612,7 @@ static void bdi_wb_shutdown(struct backing_dev_info *bdi)
* it would never exet if it is currently stuck in the refrigerator.
*/
list_for_each_entry(wb, &bdi->wb_list, list) {
- wb->task->flags &= ~PF_FROZEN;
+ thaw_process(wb->task);
kthread_stop(wb->task);
}
}