PM / Hibernate: Thaw kernel threads in hibernation_snapshot() in error/test path
In the hibernation call path, the kernel threads are frozen inside
hibernation_snapshot(). If we happen to encounter an error further down
the road or if we are exiting early due to a successful freezer test,
then thaw kernel threads before returning to the caller.
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 3e10007..7bee91f 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -249,16 +249,12 @@
}
pm_restore_gfp_mask();
error = hibernation_snapshot(data->platform_support);
- if (error) {
- thaw_kernel_threads();
- } else {
+ if (!error) {
error = put_user(in_suspend, (int __user *)arg);
if (!error && !freezer_test_done)
data->ready = 1;
- if (freezer_test_done) {
+ if (freezer_test_done)
freezer_test_done = false;
- thaw_kernel_threads();
- }
}
break;